UPSC Mains 2023 Geography Optional Question Papers with Model Answers
All 55 questions of the 2023 Civil Services Main Examination, Geography Paper I and Geography Paper II, with marks and a suggested time per part. Solve each part on paper first, then open the model answer, or send it to answer-writing practice for evaluation.
UPSC Mains 2023 Geography Paper I
Question 1 (50 marks)
Q1(a) · Climatology: Atmosphere and Circulation · 10 marks≈ 7 min
Atmospheric Circulation, Planetary and Local Winds
What is "Geostrophic Wind"? Explain the relationship between barometric slope and air circulation.
हिंदी में प्रश्न
"भू-विक्षेपी वायु क्या है"? वायुदाब ढाल एवं वायु परिसंचरण के मध्य सम्बन्ध को स्पष्ट कीजिये।
Model answer
Paper and question: Paper I, Q1(a)
Approach: Define geostrophic wind as the balance of pressure gradient and Coriolis forces, then explain how the barometric slope controls wind speed and direction, and how friction modifies it near the surface. Draw isobars with the force balance.
A geostrophic wind is a wind that blows parallel to straight isobars in the free atmosphere, where the pressure gradient force is exactly balanced by the Coriolis force and friction is negligible. In the northern hemisphere low pressure lies to its left.
Barometric slope: the rate of change of pressure over horizontal distance, shown by the spacing of isobars.
Relationship with air circulation: (i) air moves from high to low pressure, so the slope sets the basic direction of flow; (ii) the steeper the slope, the closer the isobars and the stronger the wind, as in tropical cyclones; (iii) gentle slopes, as in the doldrums and subtropical highs, give calm or light winds.
Diagram: Straight parallel isobars with the pressure gradient arrow towards low pressure, the Coriolis arrow opposite, and the geostrophic wind parallel to the isobars; below, a surface wind arrow crossing isobars at an angle.
Near the surface, friction slows the wind, weakening the Coriolis force, so air crosses isobars towards low pressure. This produces inflow into cyclones and outflow from anticyclones, in line with Buys Ballot's law.
Thus the barometric slope drives circulation, while rotation and friction shape its direction.Q1(b) · Oceanography · 10 marks≈ 7 min
Marine Resources, Coral Reefs and Sea-level Change
What is ocean ranching? How are aqua-cowboys related to such activities?
हिंदी में प्रश्न
सागरीय रेन्चिंग क्या है? एक्वा-काउबॉयस् इस तरह की गतिविधियों से कैसे सम्बन्धित होते हैं?
Model answer
Paper and question: Paper I, Q1(b)
Approach: Define ocean ranching and how it works with examples, then explain the term aqua-cowboys as people who herd and manage fish in open water (acoustic conditioning, offshore pens), ending with benefits and concerns; draw a flow diagram of the ranching cycle.
Ocean ranching is a form of mariculture in which young fish or shellfish are reared in hatcheries, released into the open sea to feed and grow on natural food, and harvested when they return or are recaptured. Unlike cage farming, the animals are not fed or confined for most of their life.
Examples: the best known is salmon ranching in Japan and Alaska, where hatchery smolts migrate to sea and return as adults to their home rivers; Japan and China also release scallops and sea bream.
Aqua-cowboys: the term describes fishers or managers who 'herd' fish in open water like ranchers herd cattle. They use acoustic conditioning, training fish to gather at a sound signal linked with feeding, as tried in Japanese marine ranching, as well as offshore pens and artificial reefs, to keep stocks near a site and recapture them.
Diagram: Flow diagram: hatchery → release of juveniles → growth at sea on natural food → return or acoustic recall → harvest.
Ranching can rebuild depleted stocks and supply protein, but it raises concerns about competition with wild fish, genetic dilution and ownership of released stock.Q1(c) · Biogeography · 10 marks≈ 7 min
Soil Genesis, Profile, Classification and Distribution
Explain the natural processes of soil enrichment and its impact on food production.
हिंदी में प्रश्न
मृदा समृद्धीकरण की प्राकृतिक प्रक्रियाओं एवं खाद्य उत्पादन पर इसके प्रभाव को स्पष्ट कीजिए।
Model answer
Paper and question: Paper I, Q1(c)
Approach: Explain the geological and biological processes that naturally enrich soil, then their effect on food production with examples; draw a nutrient-cycle flow diagram.
Soil enrichment is the natural gain of nutrients, organic matter and good structure in soil through geological and biological processes.
Geological processes: weathering of parent rock releases potassium, calcium and phosphorus; floods spread fresh silt over floodplains and deltas, as in the Ganga plain and the Nile delta; volcanic ash renews soils in Java, and Deccan basalt has weathered into fertile black soil.
Biological processes: microbes turn litter into humus; Rhizobium in legume roots and blue-green algae in paddy fields fix atmospheric nitrogen; mycorrhizal fungi help roots take up phosphorus; earthworms and termites mix and aerate the soil.
Diagram: Flow chart: parent rock and atmosphere → weathering and nitrogen fixation → soil nutrient pool → crops → litter and residues → humus → back to the pool, with an extra arrow for flood silt.
Impact on food: such soils give high yields with fewer inputs, so the alluvial plains from Punjab to West Bengal, the Nile delta and volcanic Java support very dense farming populations. Legume rotations and algae in paddy lower fertiliser needs.
But enrichment is slow while erosion is fast, so crop rotation, green manuring and mulching that copy nature are vital for food security.Q1(d) · Environmental Geography · 10 marks≈ 7 min
Principles of Ecology and Human Ecological Adaptations
How is 'Deep Ecology' as a concept different from 'Shallow Ecology'? Explain.
हिंदी में प्रश्न
गहन पारिस्थितिकी (डीप इकॉलॉजी) एक संकल्पना के रूप में उथली पारिस्थितिकी (शैलो इकॉलॉजी) से किस प्रकार भिन्न है? स्पष्ट कीजिये।
Model answer
Paper and question: Paper I, Q1(d)
Approach: Define both terms with Arne Naess, then contrast them point by point (value base, view of nature, goals, methods) with examples, and end with their relevance to policy. A two-column comparison diagram helps.
The distinction was drawn by the Norwegian philosopher Arne Naess in his 1973 paper 'The Shallow and the Deep, Long-Range Ecology Movement'.
Shallow ecology is anthropocentric: nature has instrumental value as a resource for human welfare. It fights pollution and resource depletion mainly to protect human health and affluence, through technology, laws and market tools such as carbon trading. It does not question economic growth or consumption.
Deep ecology is ecocentric: every living being and ecosystem has intrinsic value. It asks for biospheric equality, smaller human populations, simpler lifestyles and a change in the economic and ideological structures that cause damage.
Diagram: Two columns, shallow versus deep ecology, with rows for value of nature, centre (human versus ecosphere), goal, means and example.
An end-of-pipe effluent plant or a smog tower in Delhi reflects shallow thinking, while the Chipko movement, Bishnoi protection of khejri trees and blackbuck, and sacred groves reflect a deep, reverential ethic.
Critics call deep ecology impractical and insensitive to the poor of the Global South, as Ramachandra Guha argued (1989). Sustainable development today borrows from both: efficient technology with respect for ecological limits.Q1(e) · Geomorphic Processes and Landscape Development · 10 marks≈ 7 min
Applied Geomorphology: Geohydrology, Economic Geology and Environment
What are the environmental implications of economic geology? Discuss.
हिंदी में प्रश्न
आर्थिक भू-विज्ञान के पर्यावरणीय प्रभाव क्या हैं? चर्चा कीजिये।
Model answer
Paper and question: Paper I, Q1(e)
Approach: Define economic geology, then discuss the environmental implications of extracting and using earth materials (land, water, air, ecology, hazards) with Indian and world examples, note its positive role, and conclude with safeguards; sketch a mining-impact flow diagram.
Economic geology studies earth materials of economic value — metallic ores, fossil fuels, industrial minerals, building materials and groundwater — and their exploration and extraction. Each stage has environmental consequences.
Land: open-cast mining removes forest and topsoil and leaves pits and dumps, as in the Hasdeo Arand coalfield and the iron-ore belts of Odisha and Goa; underground mining causes subsidence, as at Jharia.
Water: acid mine drainage and heavy metals pollute streams; dewatering lowers water tables; tailings dams can fail catastrophically, as at Brumadinho in Brazil (2019).
Air and climate: dust, coal-fire smoke and the greenhouse gases from burning fossil fuels.
Hazards and health: river-bed sand mining destabilises channels; radioactive waste near uranium mines such as Jaduguda raises concern.
Positive role: geological knowledge identifies geogenic hazards such as arsenic in the Bengal basin groundwater, guides safe sites and supports mine reclamation.
Diagram: Flow diagram from extraction to processing to use, with impact arrows to land, water, air and people.
Safeguards include the EIA Notification (2006), District Mineral Foundations (2015) and the Sustainable Sand Mining Management Guidelines (2016).
Question 2 (50 marks)
Q2(a) · The Earth's Interior and Tectonics · 20 marks≈ 14 min
Plate Tectonics and Mountain Building
"Evidences from palaeomagnetism and sea floor spreading have validated that continents and ocean basins have never been stationary." Elucidate with suitable diagrams.
हिंदी में प्रश्न
"पुराचुम्बकत्व एवं समुद्र अधस्तल प्रसरण के साक्ष्यों ने प्रमाणित किया है कि महाद्वीप एवं महासागर द्रोणी कभी स्थिर नहीं रहे।" समुचित रेखाचित्रों द्वारा व्याख्या कीजिये।
Model answer
Paper and question: Paper I, Q2(a)
Approach: Elucidate how palaeomagnetism (apparent polar wander, magnetic latitude) and sea-floor spreading (magnetic stripes, age and sediments of the ocean floor, heat flow, drilling) prove mobility of continents and oceans; include diagrams of polar wander paths and symmetric magnetic stripes.
Wegener's drift theory (1915) was rejected for lack of a mechanism and hard proof. From the 1950s, palaeomagnetism and sea-floor spreading gave quantitative evidence that continents and ocean basins move.
Palaeomagnetism: iron minerals in cooling lava lock in the direction of the earth's field, and the inclination gives the latitude of formation. Rocks of different ages in Europe point to different poles, tracing an apparent polar wander path. The paths of Europe and North America are similar but displaced and coincide only if the Atlantic is closed (Runcorn, 1956). As there was one pole, the continents must have moved.
India: palaeomagnetic data from the Deccan Traps (about 66 million years old) show they formed in the southern hemisphere, proving India's northward journey to Asia.
Sea-floor spreading: Harry Hess (1962) proposed that crust forms at mid-ocean ridges and sinks at trenches. Vine and Matthews (1963) found magnetic stripes of normal and reversed polarity lying symmetrically on both sides of ridges, a tape recording of field reversals.
Support: ocean-floor age increases away from ridges and nowhere exceeds about 180–200 million years, while continental rocks reach about 4 billion years; sediments thicken away from ridges; heat flow peaks at ridges; Deep Sea Drilling Project cores (Glomar Challenger, from 1968) confirmed the age pattern; and Wilson's transform faults (1965) and the Hawaiian–Emperor hotspot chain show the direction of plate motion.
Diagram: (a) Apparent polar wander paths of Europe and North America, separate and then merged after closing the Atlantic; (b) a mid-ocean ridge with symmetric black–white magnetic stripes and arrows of spreading.
This evidence validates the statement: ocean basins are continually created and destroyed, and continents ride on moving plates, turning drift into the accepted theory of plate tectonics.Q2(b) · Climatology: Weather Systems, Climates and Climate Change · 15 marks≈ 11 min
Tropical and Temperate Cyclones
Explain the characteristics and weather conditions associated with 'Anticyclones' giving suitable examples.
हिंदी में प्रश्न
समुचित उदाहरणों को देते हुए "प्रति चक्रवात" की विशेषताओं और मौसम की स्थितियों को स्पष्ट कीजिये।
Model answer
Paper and question: Paper I, Q2(b)
Approach: Define anticyclones, explain their characteristics (pressure, wind, subsidence, divergence) and the weather they bring in winter and summer, classify them (cold, warm, blocking) with world and Indian examples; draw a plan and section.
An anticyclone is a system of high pressure with the highest pressure at the centre and closed isobars around it. Air sinks at the centre and spreads outward.
Characteristics: winds blow outward, clockwise in the northern hemisphere and anticlockwise in the southern, because of the Coriolis force. Isobars are widely spaced, so winds are light. Subsidence warms the air adiabatically and dries it, often creating an inversion aloft.
Weather: in summer, clear skies and strong sunshine bring hot, dry spells and heat waves. In winter, clear nights cause strong radiation cooling, frost, fog and, in cities, smog trapped under the inversion. Precipitation is rare.
Types: (i) cold or thermal anticyclones over cold continents in winter, such as the Siberian High, which feeds the cold, dry winter monsoon of East Asia; (ii) warm or dynamic subtropical highs, such as the Azores–Bermuda, North Pacific and Mascarene Highs, maintained by sinking air of the Hadley cell; (iii) blocking anticyclones, which stall the westerlies and caused the European heat wave of 2003 and the Russian heat wave of 2010.
India: winter high pressure over north-west India brings clear skies, cold waves and dense fog over the Indo-Gangetic Plain, while the Mascarene High drives the cross-equatorial flow of the south-west monsoon.
Diagram: Plan of an anticyclone with concentric isobars and clockwise outflowing winds, and a section with subsiding air and an inversion layer.
Anticyclones thus bring settled but not always pleasant weather.Q2(c) · Oceanography · 15 marks≈ 11 min
Waves, Currents and Tides
How are ocean currents generated? Discuss their effects on coastal climates with special reference to the Pacific Ocean.
हिंदी में प्रश्न
महासागरीय धारायें कैसे उत्पन्न होती हैं? प्रशान्त महासागर के विशेष सन्दर्भ में तटीय जलवायु पर उनके प्रभावों की चर्चा कीजिये।
Model answer
Paper and question: Paper I, Q2(c)
Approach: First explain the generating forces of currents (primary and secondary), then discuss how warm and cold currents shape coastal climates, with Pacific examples on both margins; draw a map of Pacific currents.
Ocean currents are large, steady movements of surface or deep water in a definite direction.
Generation: the primary driver of surface currents is the stress of planetary winds: trade winds push equatorial currents westward and westerlies drive drifts eastward. The Coriolis force deflects them, producing gyres, while differences in temperature and salinity create density currents and the thermohaline circulation. Coastlines and the sea floor divert flows, and western intensification (Stommel, 1948) makes western boundary currents narrow and fast.
Warm currents on western margins: the Kuroshio keeps southern Japan warm and humid, and the East Australian Current brings moist air and rain to the coast of New South Wales.
Cold currents on eastern margins: the Humboldt (Peru) Current cools the air, creating stable conditions, coastal fog (garúa) and the Atacama desert; the California Current gives San Francisco cool summers and fog.
Meeting zones: where the warm Kuroshio meets the cold Oyashio off Hokkaido, dense fog forms. The warm Alaska Current moderates winters along the coast of southern Alaska.
Variability: during El Niño the Peru Current weakens and warm water reaches South America, bringing heavy rain to Peru and drought to Indonesia and Australia.
Map: Pacific Ocean showing the North and South Pacific gyres with warm (Kuroshio, East Australian, Alaska) and cold (California, Humboldt, Oyashio) currents and the deserts beside cold currents.
Pacific currents thus decide whether a coast is humid or arid, mild or cool.
Question 3 (50 marks)
Q3(a) · Climatology: Atmosphere and Circulation · 20 marks≈ 14 min
Atmospheric Circulation, Planetary and Local Winds
What are the causes of origin of local winds? Discuss their significance on prevailing weather and climate in various regions, with suitable examples.
हिंदी में प्रश्न
स्थानीय पवनों की उत्पत्ति के कारण क्या हैं? समुचित उदाहरण दे कर विभिन्न क्षेत्रों में प्रचलित मौसम एवं जलवायु पर इनके महत्व की चर्चा कीजिए।
Model answer
Paper and question: Paper I, Q3(a)
Approach: Classify local winds by cause (thermal, adiabatic or foehn, katabatic, cyclonic drawing of desert air, convective) with examples, then discuss their significance for weather and climate, positive and negative. Draw the foehn effect profile.
Local winds are small-scale winds that blow over a limited area for a short period or season, produced by local differences of temperature, pressure and relief rather than by the planetary pressure belts.
Causes of origin: (i) differential heating of land and water or of slopes and valleys gives land and sea breezes and mountain-valley winds; (ii) adiabatic warming of air descending the leeward side of mountains gives foehn (Alps) and chinook (Rockies); (iii) katabatic drainage of cold, dense air from snow-covered plateaus gives mistral (Rhone valley) and bora (Adriatic); (iv) passing depressions draw desert air outward, as with the sirocco, khamsin and loo; (v) strong convective instability produces squall winds such as the Norwesters.
Diagram: Mountain profile with moist air rising on the windward side (cloud and rain), and dry air descending and warming on the leeward side, labelled foehn or chinook.
Significance on weather and climate: sea breezes moderate the heat of coastal cities like Chennai and Mumbai. The chinook melts snow and lengthens grazing seasons on the Canadian prairies. Kalbaisakhi showers help tea, jute and rice in Assam and West Bengal, and mango showers aid mango ripening in Kerala and coastal Karnataka.
Negative effects are equally important. The loo causes heat stroke across the Ganga plain; foehn and Santa Ana winds raise fire risk in the Alps and California; the mistral damages crops in southern France, where farmers plant windbreaks; the sirocco brings dust and humid heat to Sicily; the Harmattan dries crops in West Africa but relieves humidity.
Katabatic winds also create valley frost, affecting orchards in Himachal Pradesh and Kashmir.
Local winds thus give regional climates their distinct character, and understanding them helps in heat-wave alerts, crop planning and fire management.Q3(b) · Geomorphic Processes and Landscape Development · 15 marks≈ 11 min
Geomorphic Cycles and Landscape Development (Davis, Penck, King)
Define Peneplains. Describe the landscape features associated with peneplains under different geomorphic cycles.
हिंदी में प्रश्न
समप्राय भूमि को परिभाषित कीजिए। विभिन्न भू-आकृतिक चक्रों के अंतर्गत समप्राय भूमि के साथ जुड़ी हुई दृश्यभूमि विशेषताओं का वर्णन कीजिए।
Model answer
Paper and question: Paper I, Q3(b)
Approach: Define the peneplain with Davis, then describe the end-surface and its features under the humid (Davis), Penck, semi-arid (King), arid, karst and periglacial cycles, with Indian and world examples; draw comparative end-surface profiles.
A peneplain (from the Latin paene, ‘almost’) is the low, gently undulating, almost featureless surface that W.M. Davis (1899) proposed as the end product of the cycle of erosion, when prolonged downwasting reduces a region nearly to base level.
Humid fluvial cycle (Davis): in old age divides are lowered and become indistinct, valley sides are very gentle, and rivers meander lazily across broad floodplains with oxbow lakes, levees and marshes. Isolated residual hills of resistant rock, called monadnocks after Mount Monadnock in New Hampshire, rise above the surface.
Penck’s model: with waning uplift, slopes retreat and their concave lower parts extend until they meet, giving an end surface (Endrumpf) with low convex-concave hills.
Semi-arid cycle (L.C. King): parallel retreat of scarps widens pediments, which coalesce into a pediplain studded with inselbergs and bornhardts, as on the erosion surfaces of southern Africa.
The arid cycle (Davis, 1905) ends in a rock-floored plain with inselbergs, the karst cycle (Cvijić) in a corroded plain with hums, and Peltier’s periglacial cycle in a subdued surface with tors.
Diagram: Three profiles side by side — Davisian peneplain with a monadnock, Penck’s Endrumpf with concave slopes, and King’s pediplain with pediments and an inselberg.
Examples: the Schooley surface of the Appalachians (USA) and the stepped Ranchi and Pat surfaces of the Chotanagpur plateau are commonly cited as uplifted peneplains.
Since tectonic and climatic changes rarely let a cycle finish, most peneplains are relict or uplifted surfaces, and whether true peneplains form today is debated.Q3(c) · Environmental Geography · 15 marks≈ 11 min
Ecosystems, Ecological Imbalances and Environmental Degradation
What are the factors affecting regional ecological changes? How do these affect human health?
हिंदी में प्रश्न
प्रादेशिक पारिस्थितिकीय परिवर्तनों को कौनसे कारक प्रभावित करते हैं? मानव स्वास्थ्य को ये किस प्रकार प्रभावित करते हैं?
Model answer
Paper and question: Paper I, Q3(c)
Approach: First list the natural and human factors of regional ecological change, then link each to specific health effects with Indian and world examples, ending with the One Health approach. A flow diagram from factor to health outcome helps.
Regional ecological change is the alteration of the structure and functioning of ecosystems over a region. Its causes are natural and human; its effects reach human health through air, water, food and disease vectors, a field studied in medical geography.
Factors: (i) land-use change and deforestation; (ii) urbanisation and industrialisation; (iii) agricultural intensification; (iv) climate change and extreme heat; (v) river projects and wetland loss; (vi) natural events such as droughts, floods and volcanic eruptions.
Deforestation and zoonoses: forest clearing brings people, livestock and wildlife into contact. Kyasanur Forest Disease, first reported in Shivamogga district, Karnataka, in 1957, spread with forest clearance; Nipah outbreaks in Kerala and Ebola in West Africa are linked to bats in disturbed habitats.
Water and irrigation: canals and reservoirs spread malaria and schistosomiasis (Aswan); groundwater overuse has exposed people to arsenic in the Bengal delta and fluoride in Rajasthan and Telangana, causing skin lesions and fluorosis.
Urban-industrial change: air pollution in Delhi and the Indo-Gangetic plain raises respiratory and heart disease; mercury pollution caused Minamata disease in Japan.
Climate change: heat waves raise mortality, and dengue and malaria vectors move to higher altitudes in the Himalaya and East African highlands.
Diagram: Flow chart: factor (deforestation, irrigation, urbanisation, climate change) → ecological change (habitat loss, stagnant water, pollution, warming) → health outcome (zoonoses, vector-borne disease, respiratory illness, heat stress).
Health thus depends on ecosystem health. The One Health approach, the National Clean Air Programme (2019) and the Jal Jeevan Mission address causes, not only symptoms.
Question 4 (50 marks)
Q4(a) · Oceanography · 20 marks≈ 14 min
Marine Resources, Coral Reefs and Sea-level Change
Give an account of marine resources and their economic significance. How has marine pollution affected such resources?
हिंदी में प्रश्न
सागरीय संसाधनों तथा उनके आर्थिक महत्व का एक विवरण दीजिए। इस प्रकार के संसाधनों को समुद्री प्रदूषण ने कैसे प्रभावित किया है?
Model answer
Paper and question: Paper I, Q4(a)
Approach: Classify marine resources (biotic, mineral, energy, other) with their economic significance and Indian and world examples, then analyse how different kinds of marine pollution damage each resource, ending with a way forward; draw a map of India's marine resources.
Oceans cover about 71 per cent of the earth and hold biotic, mineral and energy resources that underpin the blue economy. India, with a coastline of over 7,500 km and an EEZ of about 2.02 million km², depends heavily on them.
Biotic resources: fish and shellfish supply protein and livelihoods; India is among the world's largest fish producers, with rich grounds off Kerala and Gujarat. Seaweeds, mangroves and coral reefs give food, medicines and coastal protection.
Mineral resources: offshore oil and gas (Mumbai High, Krishna–Godavari basin, North Sea, Gulf of Mexico); placer sands of ilmenite and monazite on the Kerala and Odisha coasts; salt; and polymetallic nodules in the Central Indian Ocean Basin.
Energy and other uses: tidal, wave, offshore wind and ocean thermal energy are emerging; shipping carries most of India's trade by volume through ports such as Mumbai, Mundra and Visakhapatnam; tourism, desalination and marine biotechnology add value and jobs.
Effects of pollution: oil spills, such as Deepwater Horizon (2010) and the 2017 Ennore spill near Chennai, kill fish, birds and mangroves. Nutrient runoff causes eutrophication and dead zones, as in the Gulf of Mexico, collapsing fisheries. Plastics and microplastics enter the food chain and damage tourism; heavy metals accumulate in seafood. Warming and acidification bleach corals, reducing fish nurseries.
Map: Outline map of India showing Mumbai High, the KG basin, placer sand coasts of Kerala and Odisha, major fishing zones, coral areas (Gulf of Mannar, Lakshadweep, Andamans) and the Central Indian Ocean Basin.
Integrated coastal zone management, enforcement of MARPOL and of India's ban on single-use plastics, sewage treatment and a network of marine protected areas are needed to keep these resources productive for future generations.Q4(b) · Biogeography · 15 marks≈ 11 min
Soil Genesis, Profile, Classification and Distribution
Differentiate between the characteristics of organic horizons and mineral horizons in a generalised soil profile.
हिंदी में प्रश्न
एक सामान्य मृदा परिच्छेदिका में जैव क्षितिजों एवं खनिज क्षितिजों की विशेषताओं के मध्य अन्तर स्थापित कीजिए।
Model answer
Paper and question: Paper I, Q4(b)
Approach: Define the generalised profile, then contrast organic (O) and mineral (A, E, B, C) horizons point by point on origin, composition, colour and processes, with examples; draw a labelled soil profile.
A soil profile is a vertical section from the surface to the parent rock showing layers called horizons. In a generalised profile an organic layer (O) lies over the mineral horizons A, E, B and C and bedrock R.
Organic horizons: built from the top downward by the fall of leaves, twigs and dead organisms. They are dominated by organic matter, are dark brown to black, light, porous and hold much water. By stage of decay they are Oi (fresh litter), Oe (partly decomposed) and Oa (humus).
Organic horizons are thick under coniferous forest, where acid mor humus builds up as in the podzols of Siberia and Canada, and in waterlogged peat soils (Histosols) such as the kari lands of Kuttanad in Kerala.
Mineral horizons: formed mainly from weathered rock and dominated by sand, silt and clay. The A horizon mixes humus with minerals and loses material downward; E is a pale eluvial zone stripped of clay, iron and aluminium; B is the illuvial zone of accumulation of clay, sesquioxides or carbonates; C is weathered parent material.
Diagram: A labelled profile: O (Oi, Oe, Oa) at top; A dark mineral layer; E bleached grey layer; B layer with arrows showing clay and iron moving in; C broken rock; R bedrock.
They thus differ in origin (litter above vs rock weathering below), composition (organic vs mineral), dominant processes (decomposition and humification vs leaching and accumulation) and role in fertility.
Both work as one system: humus from the O horizon feeds the A horizon, and their balance reflects climate and vegetation.Q4(c) · Climatology: Atmosphere and Circulation · 15 marks≈ 11 min
Heat Budget, Temperature and Pressure Belts
How does inversion of temperature occur? Explain its significance on local weather with suitable examples.
हिंदी में प्रश्न
ताप व्युत्क्रमण कैसे होता है? समुचित उदाहरणों द्वारा स्थानीय मौसम पर इसके महत्व का वर्णन कीजिये।
Model answer
Paper and question: Paper I, Q4(c)
Approach: Explain how the normal lapse rate is reversed, the conditions and types of inversion (radiation, valley, frontal, subsidence), and then its effects on local weather with Indian and world examples. Draw a temperature-height graph showing the inversion layer.
Normally temperature in the troposphere falls with height at about 6.5°C per km, the normal lapse rate. Inversion of temperature is the reverse condition, in which a layer of warmer air lies above cooler air.
How it occurs: (i) Radiation or ground inversion forms on long, clear, calm winter nights, when the ground loses heat rapidly by terrestrial radiation and cools the air in contact with it. (ii) Valley inversion occurs when cold, dense air drains down hill slopes at night and collects on the valley floor while warmer air stays above. (iii) Frontal inversion forms where warm air overrides a cold air mass at a front. (iv) Subsidence inversion develops when air sinking in subtropical highs warms adiabatically above cooler surface air.
Diagram: Graph with temperature on the x-axis and height on the y-axis; a line sloping normally, then bending to the right near the ground to show the inversion layer, labelled with fog below.
Significance for local weather: inversion makes the lower air stable, so vertical mixing stops. Fog forms in the Indo-Gangetic plain in December–January, disrupting flights and trains; smoke and dust are trapped, worsening the winter smog of Delhi. Frost in valley bottoms damages crops, which is why tea gardens and orchards in the Himalaya and the Nilgiris are planted on slopes.
Subsidence inversions suppress clouds and maintain the dry climate of western coastal deserts such as the Atacama, and they trapped the photochemical smog of Los Angeles.
Thus inversion is a powerful control on visibility, air quality and agriculture.
Question 5 (50 marks)
Q5(a) · Perspectives in Human Geography · 10 marks≈ 7 min
Areal Differentiation, Regional Synthesis, Dichotomy and Dualism
Explain the sequential development of areal differentiation as a fundamental concept in Human Geography.
हिंदी में प्रश्न
मानव भूगोल में एक मौलिक संकल्पना के रूप में क्षेत्रीय विभेदन के क्रमिक विकास की व्याख्या कीजिए।
Model answer
Paper and question: Paper I, Q5(a)
Approach: Define areal differentiation and trace it in sequence from the Greeks through Kant, Ritter, Hettner and Hartshorne to its reinterpretation after the quantitative revolution; a timeline diagram helps.
Areal differentiation is the study of how and why the earth's surface varies from place to place. Hartshorne (1939) defined geography as the description and interpretation of the variable character of the earth's surface.
Its roots lie in Strabo's chorographic descriptions of regions of the Roman world. Kant classified knowledge into logical (systematic) and physical (spatial) groups and placed geography with history as a chorological science of 'where'.
In the nineteenth century Ritter studied the earth as a set of distinct regional wholes, and Richthofen proposed chorology. Alfred Hettner made chorology the core of geography: the study of areas through the causal interrelation of their phenomena.
Hartshorne carried Hettner's ideas to the English-speaking world in The Nature of Geography (1939), making areal differentiation the dominant paradigm until the 1950s. It was then criticised by Schaefer as exceptionalist and descriptive.
Diagram: Timeline: Strabo, Kant, Ritter, Richthofen, Hettner, Hartshorne (1939), Schaefer (1953), with arrows marking the move from description to law-seeking.
Since the 1970s it has revived as areal integration and the 'new regional geography' (Thrift, Massey), which explains differences between places through global-local processes, for instance uneven development between Punjab and Bihar.Q5(b) · Economic Geography · 10 marks≈ 7 min
Food Security, Nutrition and Famine
Discuss critically food and nutrition problems associated with the developing world.
हिंदी में प्रश्न
विकाशशील विश्व से संबंधित खाद्य एवं पोषण समस्याओं का समालोचनात्मक वर्णन कीजिये।
Model answer
Paper and question: Paper I, Q5(b)
Approach: Distinguish food problems (quantity) from nutrition problems (quality), give their extent and causes in the developing world with data, and critically note that the issue is access and distribution more than production.
Food problems concern the quantity of food, that is hunger and undernourishment; nutrition problems concern its quality, that is deficiencies of protein, vitamins and minerals, often called hidden hunger. FAO's State of Food Security and Nutrition in the World 2024 estimated about 733 million hungry people in 2023, most in Asia and sub-Saharan Africa.
Nutrition problems: child stunting, wasting and underweight, anaemia among women and children, and iodine and vitamin A deficiency. In India, NFHS-5 (2019-21) found 35.5 per cent of children under five stunted, 19.3 per cent wasted and 57 per cent of women anaemic. A double burden is also emerging, with obesity and diabetes rising in cities.
Causes: poverty and low purchasing power; rainfed, low-yield farming; conflict (Yemen, Sudan, Gaza); climate shocks; poor sanitation and water causing infections; low female education; and cereal-heavy diets lacking pulses, fruit and animal protein.
Map: World map of prevalence of undernourishment by country (FAO), with the highest levels shaded in sub-Saharan Africa, South Asia and Yemen-Afghanistan.
Critically, the world produces enough food; the problem lies in access, distribution and diet quality, so income support, public distribution and nutrition programmes matter as much as output.Q5(c) · Population Geography · 10 marks≈ 7 min
Migration: Causes and Consequences
Human migration is a reflection of the balance between push and pull factors. Elaborate with reference to the most recent diaspora.
हिंदी में प्रश्न
मानव आव्रजन (ह्यूमन माइग्रेसन) प्रतिकर्ष एवं अभिकर्ष कारकों (पुश एवं पुल फैक्टर्स) के मध्य संतुलन का प्रतिबिम्ब है। सबसे नवीन प्रवासी जन समूह के सन्दर्भ में विस्तार से बताइए।
Model answer
Paper and question: Paper I, Q5(c)
Approach: Explain push-pull balance with Lee's model, then apply it to a recent diaspora (Indian outmigration to the Gulf and the West, and Ukrainian refugees), and conclude.
Everett Lee (1966) viewed migration as the outcome of push factors at origin, pull factors at destination, intervening obstacles and personal factors. People move when the perceived balance favours the destination enough to overcome the obstacles.
Recent Indian diaspora: push factors include limited high-paying jobs, competition for elite education and, in Kerala and Punjab, a culture of emigration; pull factors include higher wages and labour demand in the Gulf, and education, skilled-visa and settlement prospects in Canada, the USA, the UK and Australia. Networks and agents reduce obstacles, while visa caps and costs raise them.
A forced case: the Ukrainian diaspora after the 2022 Russian invasion was driven overwhelmingly by push factors of war, with Poland, Germany and the Czech Republic as destinations because of proximity and the EU's temporary protection.
Diagram: Lee's model: origin and destination circles with plus, minus and neutral signs, an obstacle bar between them, and arrows for Kerala-Gulf and India-Canada flows.
The balance shifts with policy and economy: tighter Canadian rules in 2024 slowed Indian student inflows, showing that migration responds to changes on both sides.Q5(d) · Population Geography · 10 marks≈ 7 min
Over-, Under- and Optimum Population; Population Theories
Has Malthusian Theory been discredited in contemporary times? Justify your answer.
हिंदी में प्रश्न
क्या माल्थूसियन सिद्धान्त को वर्तमान समय में मान्य नहीं किया गया है? अपने उत्तर का औचित्य सिद्ध कीजिए।
Model answer
Paper and question: Paper I, Q5(d)
Approach: State Malthus's theory briefly, give the evidence against it (food growth, transition, Boserup) and the evidence that keeps it relevant (ecological limits, hunger pockets), and give a balanced verdict.
Thomas Robert Malthus, in An Essay on the Principle of Population (1798), argued that population tends to grow geometrically while food supply grows only arithmetically, so population would outrun food unless checked by preventive checks (moral restraint, late marriage) or positive checks (famine, disease, war).
Evidence against: world food output has grown faster than population, through the agricultural and Green Revolutions; India's foodgrain output rose more than sixfold since 1950-51 while population roughly quadrupled. Ester Boserup (1965) showed that population pressure can stimulate agricultural innovation. The demographic transition shows fertility falls with development, and many countries now worry about too few births.
Evidence for: hunger persists for about 733 million people (FAO, 2023); groundwater depletion, soil degradation, climate change and biodiversity loss suggest ecological limits; in parts of the Sahel high growth strains land.
Diagram: Malthus's graph of geometric population growth crossing arithmetic food growth, beside an actual graph of world food output rising above population since 1960.
Verdict: Malthus's arithmetic has been discredited, but his core concern about the balance between population and resources survives in neo-Malthusian and sustainability debates.Q5(e) · Regional Planning · 10 marks≈ 7 min
Growth Centres and Growth Poles
Discuss the different types of polarisation induced spatial inequalities and imbalances associated with growth poles.
हिंदी में प्रश्न
वृद्धि ध्रुव से जुड़े हुए विभिन्न प्रकार के ध्रुवीकरण से प्रेरित क्षेत्रीय असमानताओं एवं असंतुलनों पर चर्चा कीजिए।
Model answer
Paper and question: Paper I, Q5(e)
Approach: Explain polarisation around growth poles (Myrdal, Hirschman, Friedmann), then classify the types of induced inequalities (inter-regional, intra-regional, rural-urban, sectoral, social and environmental) with examples.
Polarisation is the concentration of capital, labour and innovation in a growth pole. Myrdal's cumulative causation (1957) and Hirschman's polarisation effects (1958) explain how the pole grows at the expense of its surroundings, producing what Friedmann (1966) called a core-periphery structure.
Types of induced inequalities: (i) inter-regional: advanced states and metropolitan regions such as Maharashtra, Gujarat and Tamil Nadu pull ahead of Bihar and Odisha; (ii) intra-regional: within a state, the pole and its corridor prosper while the hinterland lags, as Pune-Mumbai versus Marathwada; (iii) rural-urban: migration drains villages of youth and skills; (iv) sectoral: modern industry grows while agriculture and crafts stagnate; (v) social: gains accrue to skilled and propertied groups, while displaced tribal people around Bokaro or Rourkela lose land; (vi) environmental: pollution and resource extraction burden the periphery.
Diagram: Core-periphery sketch: a core with upward-transition corridors, a downward-transition periphery and resource frontiers, with arrows of backwash flows.
These imbalances can be reduced only if spread effects are strengthened through infrastructure, small towns and inclusive policies.
Question 6 (50 marks)
Q6(a) · Settlement Geography · 20 marks≈ 14 min
Sphere of Influence, Rural-Urban Fringe and Satellite Towns
Explain the problems and prospects of urban expansion in the context of urban fringe in developed and developing nations.
हिंदी में प्रश्न
विकसित एवं विकासशील राष्ट्रों में नगरीय विस्तार की समस्याओं एवं सम्भावनाओं की नगरीय उपान्त के सन्दर्भ में विवेचना कीजिये।
Model answer
Paper and question: Paper I, Q6(a)
Approach: Define the rural-urban fringe, then compare problems and prospects of fringe expansion in developed and developing countries with examples, using a diagram of fringe zones, and conclude with planning measures.
The rural-urban fringe is the transition zone between the continuously built-up city and the open countryside, where urban and rural land uses intermingle. The term was used by Wehrwein (1942), and Pryor (1968) distinguished an inner urban fringe from an outer rural fringe.
Developed countries: expansion takes the form of low-density suburban sprawl driven by cars, mortgages and highways, as in the USA. Problems: loss of farmland and habitats, car dependence and emissions, costly infrastructure, decline of inner cities and social segregation. Prospects and responses: green belts (London's Metropolitan Green Belt), smart growth and urban growth boundaries (Portland, Oregon), new towns, and peri-urban recreation and farming.
Developing countries: expansion is rapid, unplanned and often informal. Problems: haphazard conversion of farmland by speculators, informal settlements and 'urban villages' lacking water, sewerage and roads (Delhi's lal dora villages and unauthorised colonies), polluting industries escaping city rules, encroachment on wetlands and floodplains (Chennai's Pallikaranai marsh, Bengaluru's lakes), and governance gaps between municipal and panchayat authorities.
Prospects: cheaper land for affordable housing and industry, new jobs, peri-urban agriculture supplying vegetables and milk, logistics hubs along expressways, and planned satellite towns such as Navi Mumbai, New Town Rajarhat and Gurugram.
Diagram: Concentric sketch: city core → inner fringe (mixed land use, rapid conversion) → outer fringe (farmland with scattered housing) → rural hinterland, with arrows showing expansion along highways.
Measures: regional and master plans covering the whole metropolitan area, land pooling (as in Amaravati and Delhi's Land Pooling Policy), protection of water bodies, extension of services before development, and strong metropolitan planning committees under the 74th Amendment. Managed well, the fringe can become the city's growth frontier rather than its problem zone.Q6(b) · Perspectives in Human Geography · 15 marks≈ 11 min
Languages, Religions, Cultural Regions and the Human Development Index
What is the relation between gender equity and human development? Provide a list of commonly used gender related indices.
हिंदी में प्रश्न
लैंगिक समता एवं मानव विकास के मध्य क्या सम्बन्ध है? सामान्य रूप से प्रयुक्त लिंग संबंधी सूचकांक प्रस्तुत कीजिये।
Model answer
Paper and question: Paper I, Q6(b)
Approach: Explain the two-way link between gender equity and human development (Sen's capability approach, evidence), then list and briefly describe the common gender indices with India's position.
Gender equity means fairness in access to resources, opportunities and power between women and men. The Human Development Report 1995 declared that human development, if not engendered, is endangered: development that excludes half the population cannot enlarge everyone's choices.
The relation is two-way. Educated and healthy women have fewer and healthier children, lower infant mortality and better child nutrition, as Kerala's experience shows; women's employment raises household income and national growth. Conversely, higher incomes, schooling and health services widen women's capabilities, in Amartya Sen's sense. Son preference, low female labour force participation and violence lower both equity and overall development.
Diagram: Cycle: women's education and health → lower fertility and better child health → higher productivity and income → more investment in girls → greater gender equity.
Commonly used indices: (i) Gender Development Index (UNDP, 1995): ratio of female to male HDI; (ii) Gender Empowerment Measure (1995-2009); (iii) Gender Inequality Index (UNDP, 2010): reproductive health, empowerment and labour market; India ranked 108 of 193 in HDR 2023-24; (iv) Global Gender Gap Index (World Economic Forum, 2006): economic, education, health, political dimensions; India ranked 129 of 146 in 2024; (v) Social Institutions and Gender Index (OECD); (vi) Gender Social Norms Index (UNDP, 2020); (vii) Women, Peace and Security Index (Georgetown).
These indices show that India's gaps lie mainly in economic participation and political representation, which policies such as the Women's Reservation Act (2023) aim to address.Q6(c) · Economic Geography · 15 marks≈ 11 min
World Resources, Energy Crisis and the Limits to Growth
Explain population, resource use and development nexus in the Limits to Growth Model. Why has this model been criticized intensively?
हिंदी में प्रश्न
विकास की सीमाएं मॉडल में जनसंख्या, संसाधन उपयोग एवं विकास गठजोड़ को स्पष्ट कीजिये। इस माडल की आलोचना अधिकता से क्यों की गई है?
Model answer
Paper and question: Paper I, Q6(c)
Approach: Introduce the Limits to Growth model, explain the nexus of population, resource use, industrial output, food and pollution with the standard run, then give the main criticisms and a short note on later evidence.
The Limits to Growth (1972), written by Donella Meadows, Dennis Meadows, Jorgen Randers and William Behrens III for the Club of Rome, used the MIT computer model World3 to simulate global trends.
The nexus: five interacting variables, population, food production, industrial output, non-renewable resource use and pollution, grow exponentially and are linked by feedback loops. More people need more food and goods; industrial growth draws down finite resources and raises pollution; pollution and resource depletion then reduce food and industrial output, and finally population. In the standard run, overshoot leads to collapse of industrial output and population within the twenty-first century. Only stabilising population and capital with technological change gave a sustainable equilibrium.
Diagram: World3 standard-run graph: population, food per capita and industrial output per capita rising and then falling after resources decline and pollution peaks, plotted from 1900 to 2100.
Criticisms: (i) the Sussex group's Models of Doom (1973) showed results depended on pessimistic assumptions; (ii) it underrated technology, substitution and price signals, a point pressed by Julian Simon; (iii) it aggregated the world, ignoring North-South differences and distribution; (iv) developing countries saw it as neo-Malthusian, asking them to forgo growth.
Yet updates (1992, 2004) and Graham Turner's 2008 comparison found real data close to the standard run in some variables, and its ideas inform today's planetary boundaries and sustainability debates.
Question 7 (50 marks)
Q7(a) · Models, Theories and Laws in Human Geography · 20 marks≈ 14 min
Central Place Theories of Christaller and Losch
Explain with suitable diagrams A. Losch's model of the Theory of Location related to Central Places. Why has this been criticized?
हिंदी में प्रश्न
समुचित आरेखों द्वारा ए. लॉश के केन्द्रीय स्थान से सम्बन्धित स्थिति सिद्धान्त के मॉडल को स्पष्ट कीजिये। इसकी आलोचना क्यों की गई है?
Model answer
Paper and question: Paper I, Q7(a)
Approach: Explain Losch's model step by step (demand cone, hexagonal market areas, variable k, superimposition and rotation into city-rich and city-poor sectors) with diagrams, compare briefly with Christaller, then give the criticisms.
August Losch, in Die räumliche Ordnung der Wirtschaft (1940; English The Economics of Location, 1954), built a central place model deductively from economic principles, seeking the location that maximises profit rather than minimises cost.
Step 1: on a uniform plain with evenly distributed population, demand for a good falls with distance from the seller because transport cost raises the price; rotating the demand curve gives a demand cone whose base is a circular market area. Step 2: competition and free entry squeeze circles into hexagons, the most efficient shape. Step 3: unlike Christaller's fixed k, each good has its own threshold and range, so market areas of different sizes occur; Losch derived a series of possible hexagonal nets (k = 3, 4, 7, 9, 12, 13 and so on). Step 4: all nets are superimposed on one common centre, the metropolis, and rotated so that as many centres as possible coincide, minimising total distance.
Result: an 'economic landscape' with six city-rich sectors, where production centres cluster, alternating with six city-poor sectors radiating from the metropolis. Places of the same size need not have the same functions, and larger places need not contain all functions of smaller ones, so the hierarchy is continuous rather than stepped.
Diagram: (a) Demand cone with price rising and quantity falling with distance; (b) nested hexagonal nets of different sizes; (c) Losch's economic landscape, a circle around the metropolis divided into twelve alternating city-rich and city-poor sectors.
Criticisms: (i) unrealistic assumptions of a uniform plain, even population and identical consumers; (ii) the model is static and ignores historical development and transport networks; (iii) it is mathematically complex and hard to test empirically; (iv) like Christaller, it ignores political and cultural factors and is weak for industrial and metropolitan regions.
Nevertheless, Losch's model is more flexible and realistic in its continuous hierarchy and remains a landmark in location theory.Q7(b) · Environmental Geography · 15 marks≈ 11 min
Biodiversity and Sustainable Development
How can Sustainable Land Management (SLM) harmonise the complimentary goals of environmental, economic and social opportunities? Discuss.
हिंदी में प्रश्न
सतत भूमि प्रबन्धन (एस.एल.एम) पर्यावरणीय, आर्थिक एवं सामाजिक अवसरों के पूरक लक्ष्यों में सामंजस्य कैसे स्थापित कर सकता है? विवेचना कीजिये।
Model answer
Paper and question: Paper I, Q7(b)
Approach: Define Sustainable Land Management, show how its practices serve environmental, economic and social goals together with Indian and world examples, then note constraints; draw a three-circle diagram with SLM at the overlap.
Sustainable Land Management (SLM), a concept from the 1992 Earth Summit promoted by the UNCCD and WOCAT, is the use of soil, water, plants and animals to meet changing human needs while keeping their long-term productive potential and environmental functions. Its practices include conservation agriculture, agroforestry, watershed management and terracing.
Environmental goals: SLM checks erosion, restores soil carbon, recharges groundwater and conserves biodiversity, serving Land Degradation Neutrality (SDG 15.3). India pledged at UNCCD COP14 in New Delhi (2019) to restore 26 million hectares of degraded land by 2030.
Economic goals: healthier soils stabilise yields, cut input costs and diversify income through agroforestry. Watershed villages such as Ralegan Siddhi and Hiware Bazar in Maharashtra turned water-scarce farms productive.
Social goals: SLM improves food and water security, reduces distress migration and creates rural jobs; participatory watershed committees under PMKSY and women's self-help groups give communities a voice.
Diagram: Three overlapping circles labelled environmental (soil, water, biodiversity), economic (yield, income, lower costs) and social (food security, equity, jobs), with SLM at the centre.
Abroad, terracing and revegetation of China's Loess Plateau and farmer-managed natural regeneration in Niger raised both tree cover and incomes.
Harmony is not automatic: SLM needs upfront investment, secure tenure and years before benefits appear, while short-term pressures favour mining the soil. Credit, extension services and payment for ecosystem services make the three goals complementary in practice.Q7(c) · Models, Theories and Laws in Human Geography · 15 marks≈ 11 min
Systems Analysis; Malthusian, Marxian and Demographic Transition Models
"The stages of Demographic Transition are a reflection of uneven economic development across the globe." Explain with suitable examples.
हिंदी में प्रश्न
जनसांख्यिकीय संक्रमण की अवस्थायें विश्व भर में असमान आर्थिक विकास का प्रतिबिम्ब हैं। समुचित उदाहरण द्वारा स्पष्ट कीजिये।
Model answer
Paper and question: Paper I, Q7(c)
Approach: Outline the DTM stages and show how each corresponds to a level of economic development, with countries at each stage, then note exceptions where social policy rather than income drove transition.
The demographic transition model (Thompson, 1929; Notestein, 1945) links population change to modernisation. Because economic development has spread unevenly, countries today occupy different stages, making the global map of transition a mirror of development.
Low-income countries, mainly in sub-Saharan Africa (Niger, Mali, the DRC), are in the late second stage: mortality has fallen through imported medicine, but agrarian economies, low female education and high child mortality keep fertility high, giving rapid growth and young populations.
Lower-middle-income countries such as India, Bangladesh, Pakistan and the Philippines are in the third stage: urbanisation, education and family planning are lowering fertility. Within India, Kerala and Tamil Nadu reached the fourth stage decades before Bihar and Uttar Pradesh, reflecting regional development gaps.
High-income countries (Western Europe, North America, Japan, South Korea) are in the fourth or fifth stage, with low fertility, long life and ageing.
Diagram: DTM graph with representative countries placed along the stages: Niger, India, Brazil, USA, Japan.
Exceptions show the link is not mechanical: Sri Lanka and Kerala lowered fertility at low incomes through health, literacy and women's status, while some rich Gulf states kept high fertility. Hence the stages largely reflect uneven economic development, but social policy and culture also shape them.
Question 8 (50 marks)
Q8(a) · Settlement Geography · 20 marks≈ 14 min
Rural Settlements: Types, Patterns and Environmental Issues
"Rural settlements are expressions of the basic relationships between human beings and their physical and social environment." Discuss.
हिंदी में प्रश्न
"ग्रामीण अधिवास मानव और उनके भौतिक एवं सामाजिक पर्यावरण के मध्य बुनियादी सम्बन्धों की अभिव्यक्ति है।" चर्चा कीजिए।
Model answer
Paper and question: Paper I, Q8(a)
Approach: Define rural settlement, then show how physical factors (relief, water, soil, climate, hazards) and social factors (caste, kinship, defence, religion, land tenure, economy) shape the site, type, pattern and house forms of rural settlements, with Indian examples and sketches, and conclude.
A rural settlement is a cluster of dwellings whose inhabitants depend mainly on primary activities such as agriculture, forestry, fishing and herding. Its site, form and house types record, a long adjustment between people and their physical and social environment.
Physical relationships: (i) water: villages seek 'wet-point' sites near rivers, springs, tanks and wells, while in floodplains and deltas they occupy 'dry-point' sites on levees and mounds, as in Bengal and Assam; (ii) relief: compact villages on level plains, scattered hamlets on slopes in the Himalaya and the North-east; (iii) soil fertility supports dense, large villages in the Indo-Gangetic plain, unlike the small dhanis of arid western Rajasthan; (iv) climate shapes house forms: flat mud roofs in dry Rajasthan and Ladakh, sloping tiled or thatched roofs in rainy Kerala and the Konkan, stilt houses in Assam's floodplains.
Social relationships: (i) caste and kinship produce internally segregated villages, with dominant castes at the core and Dalit hamlets on the periphery; (ii) defence and security favoured compact, walled villages in Rajasthan and the north-west; (iii) religion places temples, mosques or gurdwaras at the village centre; (iv) economy: plantation lines in Assam and canal colonies in Punjab.
Types and patterns follow: compact or nucleated (Ganga-Yamuna doab), semi-compact (Malwa), hamleted (middle Ganga plain, coastal Bengal) and dispersed (hills, deserts); patterns include linear (along roads, rivers and the Kerala coast), rectangular (Punjab) and circular (around a tank).
Diagram: Four sketches: a compact village of the Ganga plain, a hamleted settlement of the Bengal delta, a linear village along the Kerala backwaters, and dispersed dhanis of the Thar.
Environmental issues reflect the same relationship under stress: poor sanitation and drinking water, waterlogging, encroachment on village commons and ponds, and exposure to floods, droughts and landslides.
Thus rural settlements are indeed expressions of human-environment and social relationships; modernisation, roads and schemes such as PMAY-Gramin are now reshaping them.Q8(b) · Regional Planning · 15 marks≈ 11 min
Concept of Region, Types of Regions and Regionalisation
Describe the concept of Planning Region. Explain the environmental and economic factors in the creation of such regions.
हिंदी में प्रश्न
नियोजन प्रदेश (प्लानिंग रीज़न) की संकल्पना का वर्णन कीजिये। इस प्रकार के प्रदेशों के सृजन में पर्यावरणीय एवं आर्थिक कारकों को स्पष्ट कीजिये।
Model answer
Paper and question: Paper I, Q8(b)
Approach: Explain the concept of the planning region with its characteristics, then discuss environmental and economic factors in creating such regions with Indian and world examples, and conclude.
A planning region is a territorial unit delimited for formulating and implementing development plans. It combines features of formal regions (homogeneity of problems) and functional regions (nodality and linkages) and must be administratively workable. R.P. Misra and P. Sen Gupta proposed hierarchies of planning regions for India.
Environmental factors: (i) river basins and watersheds, which integrate water, soil and land use: the Tennessee Valley Authority (1933) and the Damodar Valley Corporation (1948); (ii) agro-climatic conditions: the 15 agro-climatic regions (Planning Commission, 1988); (iii) ecologically fragile zones: the Western Ghats, the Himalayan region, the Sundarbans and deserts, which need special plans such as the Desert Development Programme and the Hill Area Development Programme; (iv) hazard zones such as flood-prone or drought-prone areas.
Economic factors: (i) resource base, as in the Chota Nagpur mineral region; (ii) nodality and market linkages around metropolitan centres, as in the NCR and the Mumbai Metropolitan Region; (iii) levels of development and backwardness, as in aspirational districts and special packages for Bundelkhand and KBK; (iv) industrial corridors such as the Delhi-Mumbai Industrial Corridor.
Map: Outline map of India showing a river-basin region (Damodar), an ecological region (Western Ghats), a metropolitan region (NCR) and an industrial corridor (DMIC).
Effective planning regions balance environmental integrity with economic viability; the shift towards watershed, river-basin and ecosystem-based planning reflects this.Q8(c) · Models, Theories and Laws in Human Geography · 15 marks≈ 11 min
Heartland and Rimland Theories; Boundaries and Frontiers
"Boundaries and frontiers have different meanings in geographical literature." Substantiate your answer in the present context.
हिंदी में प्रश्न
"सीमाएं एवं सीमान्तों के भौगोलिक साहित्य में भिन्न अर्थ है।" अपने उत्तर की पुष्टि वर्तमान सन्दर्भ में कीजिये।
Model answer
Paper and question: Paper I, Q8(c)
Approach: Define frontier and boundary (Kristof), substantiate their different meanings with a comparison and examples, and show the present context (frontier zones, contested borders, maritime and outer-space frontiers).
In political geography a frontier and a boundary are distinct. Ladis Kristof, in 'The Nature of Frontiers and Boundaries' (1959), explained that the frontier is outward-oriented, facing the hinterland beyond, while the boundary is inward-oriented, marking the limit of a state's sovereignty.
Differences: (i) form: a frontier is a zone or belt, a boundary is a line; (ii) nature: a frontier is a zone of contact and integration, often thinly settled, a boundary is a line of separation; (iii) origin: frontiers are natural or historical, boundaries are legal, agreed by treaty, delimited and demarcated; (iv) dynamism: frontiers move with settlement and power, boundaries are meant to be fixed; (v) function: frontiers are centrifugal, boundaries centripetal, binding the state together.
Examples: historically the Himalaya and the Thar formed frontiers between South Asia and its neighbours; the American 'frontier' of Frederick Jackson Turner was a moving settlement zone. Today boundaries include the Radcliffe Line and the 49th parallel.
Diagram: Two sketches: a broad frontier zone between two states with scattered settlement, and a sharp boundary line with border posts.
Present context: frontiers survive where boundaries are undefined or disputed, such as the Line of Actual Control with China and parts of Antarctica; new frontiers are maritime (exclusive economic zones under UNCLOS, the Arctic), cyber and outer space. Thus the two terms retain different meanings, though most land frontiers have become boundaries.
UPSC Mains 2023 Geography Paper II
Question 1 (50 marks)
Q1(a) · Places for the Map Question · 20 marks≈ 14 min
How to Prepare the Map Question
On the outline map of India provided to you, mark the location of all of the following. Write in your QCA Booklet the significance of these locations, whether physical/commercial/economic/ecological/environmental/cultural:
(i) Nathula
(ii) Hutti
(iii) Ross Island
(iv) Moreh
(v) Ramappa
(vi) Namdapha National Park
(vii) Sela Tunnel
(viii) Ennore Port
(ix) Ramagundam
(x) Betwa Riverहिंदी में प्रश्न
आपको दिए गए भारत के रेखा मानचित्र पर, निम्नलिखित सभी की स्थिति को अंकित कीजिए। अपनी क्यू० सी० ए० पुस्तिका में इन स्थानों में से प्रत्येक का भौतिक/वाणिज्यिक/आर्थिक/पारिस्थितिक/पर्यावरणीय/सांस्कृतिक महत्त्व लिखिए:
(i) नाथुला
(ii) हट्टी
(iii) रॉस द्वीप
(iv) मोरेह
(v) रामप्पा
(vi) नामदाफा राष्ट्रीय उद्यान
(vii) सेला सुरंग
(viii) एन्नोर बंदरगाह
(ix) रामागुंडम
(x) बेतवा नदीModel answer
Paper and question: Paper II, Q1(a)
Approach: Plot the ten places (passes, mines, islands, border towns, heritage sites, parks, tunnels, ports, power centres and a river) on the outline map with dots and labels; for each give location and a 30-word significance.
(i) Nathula: Pass at about 4,310 m on the Sikkim–Tibet (China) border, East Sikkim (about 27.4°N, 88.8°E), on the old Silk Route branch from Gangtok to the Chumbi valley. Border trade reopened in 2006; a route for the Kailash Mansarovar Yatra since 2015; strategically sensitive.
(ii) Hutti: Town in Raichur district, Karnataka (about 16.2°N, 76.7°E), on the Hutti–Maski schist (greenstone) belt of the Dharwar craton. Hutti Gold Mines Ltd runs India's only active primary gold mine of significance, producing nearly all of the country's mined gold.
(iii) Ross Island: Small island off Sri Vijayapuram (Port Blair), South Andaman (about 11.7°N, 92.8°E), renamed Netaji Subhash Chandra Bose Dweep in 2018. British administrative headquarters of the penal settlement until 1941; ruins, deer and the light-and-sound show make it a heritage tourism site.
(iv) Moreh: Border town in Tengnoupal district, Manipur (about 24.2°N, 94.3°E), facing Tamu in Myanmar. India's main land port to Myanmar, on the India–Myanmar–Thailand Trilateral Highway; key to the Act East Policy, border trade and Free Movement Regime debates.
(v) Ramappa: Rudreswara (Ramappa) temple at Palampet, Mulugu district, Telangana (about 18.3°N, 79.9°E), built in 1213 CE under the Kakatiyas. UNESCO World Heritage Site (2021); famed for floating light bricks, sandbox foundation and sculpture; Ramappa lake is a Kakatiya irrigation tank.
(vi) Namdapha National Park: Changlang district, Arunachal Pradesh (about 27.5°N, 96.4°E), on the Noa-Dihing river near the Myanmar border, ranging from about 200 m to 4,500 m. Tiger reserve with four big cats (tiger, leopard, clouded and snow leopard) and the hoolock gibbon; a biodiversity hotspot.
(vii) Sela Tunnel: Twin-tube road tunnel at about 13,000 ft below Sela Pass, West Kameng–Tawang, Arunachal Pradesh (about 27.5°N, 92.1°E), built by the BRO and opened in March 2024. Among the world's longest twin-lane tunnels at that height; gives all-weather access to Tawang near the LAC.
(viii) Ennore Port: Kamarajar Port at Ennore, north of Chennai, Tamil Nadu (about 13.3°N, 80.3°E). India's first corporatised major port (opened 2001), handling thermal coal for Ennore and North Chennai power stations, LNG, petroleum and automobiles; Ennore creek faces pollution and wetland loss.
(ix) Ramagundam: Industrial town in Peddapalli district, Telangana (about 18.8°N, 79.5°E), on the Godavari. Has NTPC's 2,600 MW super thermal station using Singareni coal, a 100 MW floating solar plant (2022) and the revived Ramagundam Fertilizers urea plant (2021); also near the Kaleshwaram lift scheme.
(x) Betwa River: Rises in the Vindhyas in Raisen district near Bhopal, Madhya Pradesh, and flows north-east through Bundelkhand to join the Yamuna near Hamirpur, Uttar Pradesh. Orchha lies on it; the Ken–Betwa link (approved 2021) will transfer Ken water to drought-prone Bundelkhand.Q1(b) · India: Physical Setting I · 10 marks≈ 7 min
Geological Structure and Relief
Describe the origin, distribution and economic significance of Gondwana system of rocks in India.
हिंदी में प्रश्न
भारत में गोंडवाना प्रणाली की चट्टानों की उत्पत्ति, वितरण और आर्थिक महत्त्व का वर्णन कीजिए।
Model answer
Paper and question: Paper II, Q1(b)
Approach: Use the three directives as headings: origin, distribution and economic significance. Draw a map of the Gondwana coalfields.
The Gondwana system, named by H.B. Medlicott after the Gond kingdoms of central India, comprises freshwater river and lake deposits of late Carboniferous to early Cretaceous age, laid down when India was part of Gondwanaland.
Origin: faulting of the old Peninsular block produced linear troughs (grabens) along today's river valleys. Rivers filled them with sand, mud and swamp vegetation of the Glossopteris flora, which subsidence buried and turned into coal. The sequence begins with the glacial Talchir tillite, followed by the coal-bearing Barakar and Raniganj stages.
Distribution: the Damodar valley (Raniganj, Jharia, Bokaro), the Son valley (Singrauli), the Mahanadi valley (Talcher, Ib valley) and the Godavari–Wardha valley (Singareni).
Economic significance: these basins hold nearly all of India's coal (commonly put at about 98%), whose total resources were about 389 billion tonnes (GSI, 1 April 2024). They also yield fire clay and coal-bed methane and host the Dhanbad–Durgapur mining and steel belt.
Map: Outline map of India marking the Damodar, Son, Mahanadi and Godavari Gondwana basins with Jharia, Raniganj, Singrauli, Talcher and Singareni coalfields.
The system underpins India's energy security, though its use must now be balanced with mine-land restoration.Q1(c) · Transport, Communication and Trade · 10 marks≈ 7 min
Communication, Information Technology and the Indian Space Programme
Examine the role of Indian Earth Observation Satellite Technology in enhancing weather forecasting and disaster management.
हिंदी में प्रश्न
मौसम पूर्वानुमान और आपदा प्रबंधन को बढ़ाने में भारतीय पृथ्वी अवलोकन उपग्रह प्रौद्योगिकी की भूमिका का परीक्षण कीजिए।
Model answer
Paper and question: Paper II, Q1(c)
Approach: Name India's key earth observation and meteorological satellites, then show their role in weather forecasting and in each phase of disaster management, with examples. Draw a diagram of the satellite-based forecasting and disaster cycle.
India operates a large fleet of earth observation satellites: the INSAT-3D, 3DR and 3DS meteorological satellites, Oceansat-3, the RISAT radar imaging satellites, the Cartosat series and the NASA–ISRO NISAR radar satellite (launched 2025).
Weather forecasting: geostationary satellites give half-hourly cloud images, temperature and moisture profiles; data on sea surface temperature and winds over the oceans feed IMD's numerical models; and continuous tracking improves monsoon and cyclone forecasts, as used under Mission Mausam (2024).
Disaster management: (i) early warning: accurate cyclone tracks allowed the mass evacuation that kept deaths low in Phailin (2013) and Fani (2019); (ii) response: radar satellites map floods through clouds, as in Assam and Kerala, and the NRSC's Decision Support Centre provides damage maps; (iii) recovery and mitigation: hazard zonation for landslides and floods, drought monitoring, and Bhuvan geoportal services for planners.
Diagram: Cycle diagram linking satellite observation to forecasting, warning, response and recovery.
Satellite technology has thus made Indian forecasting and disaster management far more effective.Q1(d) · Resources of India · 10 marks≈ 7 min
Forest, Wildlife, Biotic and Marine Resources and Their Conservation
Discuss the impact of the National Green Tribunal Act, 2010 on forest conservation in India.
हिंदी में प्रश्न
भारत में वन संरक्षण पर राष्ट्रीय हरित अधिकरण अधिनियम, 2010 के प्रभाव की विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q1(d)
Approach: Introduce the NGT Act and its mandate, then discuss its positive impacts on forest conservation with examples, and its limitations. Draw a diagram of NGT benches.
The National Green Tribunal Act, 2010 created a specialised tribunal (principal bench in Delhi and four zonal benches) to decide environmental cases, including those under the Forest (Conservation) Act, 1980, applying the principles of sustainable development, precaution and polluter pays.
Positive impacts: (i) faster, specialised adjudication with expert members, aiming to decide cases within six months; (ii) wider access to justice, since affected communities and NGOs can approach it directly; (iii) scrutiny of forest clearances, as when it set aside the forest clearance for the Parsa East–Kente Basan coal block in Hasdeo Arand (2014), though that order was later stayed by the Supreme Court; (iv) curbs on illegal sand and stone mining and on encroachment in forests and the Aravallis.
Limitations: it has no jurisdiction under the Wildlife (Protection) Act, 1972 or the Forest Rights Act, 2006; vacancies and limited benches cause delays; compliance with its orders is weak; and many decisions are stayed on appeal.
Diagram: Map-diagram of India marking the NGT principal bench (Delhi) and zonal benches (Bhopal, Pune, Kolkata, Chennai) with the laws it enforces.
The NGT has strengthened green justice for forests, but its impact depends on capacity and enforcement.
Question 2 (50 marks)
Q2(a) · Contemporary Issues · 20 marks≈ 14 min
Pollution, Land-use Change and Environmental Impact Assessment
Examine the environmental challenges caused by the solid waste in metropolitan regions of India and discuss the efforts to overcome it.
हिंदी में प्रश्न
भारत के महानगरीय क्षेत्रों में ठोस अपशिष्ट के कारण उत्पन्न पर्यावरणीय चुनौतियों का परीक्षण कीजिए और इस पर काबू पाने के प्रयासों की विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q2(a)
Approach: State the scale of urban solid waste, examine its environmental challenges in metropolitan regions with named dumpsites, then discuss legal, programme and community efforts and their gaps; map the major landfills.
Municipal solid waste is the household, commercial and institutional refuse of towns. Indian urban areas generated about 1.6 lakh tonnes a day in 2020–21 (CPCB annual report), and metropolitan regions such as Delhi, Mumbai, Bengaluru and Chennai produce the largest share, rising with income and consumption.
Land and fire: unsegregated waste piles into legacy dumpsites such as Ghazipur, Bhalswa and Okhla (Delhi), Deonar (Mumbai) and Perungudi (Chennai); a slope collapse at Ghazipur (2017) killed two people, and fires at Deonar (2016) and Brahmapuram, Kochi (2023) blanketed cities in toxic smoke.
Air, water and climate: burning releases dioxins and particulates; leachate pollutes groundwater and rivers such as the Yamuna; decomposing organic waste emits methane, a potent greenhouse gas.
Urban flooding and health: plastics choke drains, as in the Mumbai deluge of 2005; open dumps breed vectors of dengue and leptospirosis, and waste pickers work without protection.
Efforts: the Solid Waste Management Rules 2016, now replaced by the SWM Rules 2026 (in force from 1 April 2026) with mandatory four-stream segregation into wet, dry, sanitary and special-care waste; Swachh Bharat Mission–Urban (2014) and SBM-U 2.0 (2021), which funds bio-mining of legacy dumps; the single-use plastic ban (1 July 2022) and extended producer responsibility; Swachh Survekshan rankings in which Indore leads through door-to-door segregated collection.
Community models: Pune's SWaCH waste-picker cooperative and decentralised composting in Alappuzha show that local systems work better than distant landfills.
Map: Map of India marking major metros and their dumpsites (Ghazipur, Bhalswa, Deonar, Perungudi, Brahmapuram) and Indore as the model city.
Gaps: weak segregation, low processing, waste-to-energy plants that burn wet waste poorly, and thin municipal finances. Segregation at source, composting and formal roles for waste pickers can turn metros towards ‘zero landfill’.Q2(b) · Agriculture in India · 15 marks≈ 11 min
Green Revolution and Dry Farming
Why are millets considered as 'nutri-cereals' and climate-resilient? Discuss the constraints and opportunities of millet cultivation in India.
हिंदी में प्रश्न
मोटे अनाज को 'पोषक अनाज' और जलवायु-लचीला क्यों माना जाता है? भारत में मोटे अनाज की खेती की बाधाओं और (सु)अवसरों की विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q2(b)
Approach: Explain why millets are called nutri-cereals (nutritional profile) and climate-resilient (physiology and agronomy), then discuss constraints and opportunities with Indian policy. Draw a map of millet-growing regions.
Millets (jowar, bajra, ragi and small millets such as kodo, kutki, foxtail and barnyard) were notified as nutri-cereals by the Government of India in 2018, and 2023 was declared the International Year of Millets by the UN on India's proposal; they are promoted as 'Shree Anna'.
Why nutri-cereals: they are rich in dietary fibre, protein, minerals and vitamins; ragi is very rich in calcium, and bajra in iron. They are gluten-free with a low glycaemic index, which helps manage diabetes, and so they help address India's 'hidden hunger' (anaemia and micronutrient deficiency).
Why climate-resilient: most are hardy, short-duration crops that grow on poor, shallow soils with 200–600 mm of rain; many, such as bajra and jowar, are C₄ plants that use water efficiently, tolerate heat and drought, need few inputs and have a lower carbon footprint than rice.
Constraints: low yields and little research investment; the shift of area to rice, wheat, soybean and maize after the Green Revolution; weak MSP procurement and markets; processing difficulties (dehulling small millets); limited shelf life; and changing consumer preferences.
Opportunities: inclusion in PDS and PM POSHAN, state millet missions (Odisha Millet Mission, 2017), health-conscious urban and export markets, start-ups and value-added products, and the Global Centre of Excellence at the Indian Institute of Millets Research, Hyderabad.
Map: Map of India showing bajra (Rajasthan, Uttar Pradesh, Haryana, Gujarat), jowar (Maharashtra, Karnataka), ragi (Karnataka, Tamil Nadu, Uttarakhand) and small millet (Odisha, Madhya Pradesh, Chhattisgarh) regions.
Millets can link nutrition security with climate adaptation if markets and processing are strengthened.Q2(c) · Political Aspects · 15 marks≈ 11 min
India's Role in World Affairs; Geopolitics of South Asia and the Indian Ocean
Examine the geostrategic significance of Indian islands.
हिंदी में प्रश्न
भारतीय द्वीपों के भू-रणनीतिक महत्त्व का परीक्षण कीजिए।
Model answer
Paper and question: Paper II, Q2(c)
Approach: Examine the geostrategic significance of the Andaman and Nicobar and Lakshadweep groups: location relative to sea lanes and choke points, EEZ and resources, military role and current projects, plus challenges; map of the islands and channels.
India has about 1,382 offshore islands, but two groups matter most strategically: the Andaman and Nicobar Islands in the Bay of Bengal and the Lakshadweep Islands in the Arabian Sea. Together they add a large part of India's Exclusive Economic Zone of over 2 million km².
Andaman and Nicobar: stretching about 800 km north–south, they overlook the western approach to the Malacca Strait and the Six and Ten Degree Channels; Indira Point lies close to Sumatra. The Andaman and Nicobar Command (2001), India's first tri-service command, and INS Baaz at Campbell Bay allow surveillance of Chinese and other shipping. The proposed transshipment port at Galathea Bay in Great Nicobar aims to make India a hub on the Malacca route.
Lakshadweep: lying astride the Nine and Eight Degree Channels used by ships between the Gulf, Suez and East Asia, it gives a forward position in the Arabian Sea; INS Jatayu was commissioned at Minicoy in March 2024.
Economic value: fisheries, tuna, possible seabed minerals and tourism support the blue economy.
Map: Map of the Bay of Bengal and Arabian Sea showing the two island groups, the Ten, Six, Nine and Eight Degree Channels, the Malacca Strait, Coco Islands (Myanmar) and Indira Point.
Challenges: remoteness, seismic and tsunami risk (2004), fragile coral and rainforest ecosystems, and protected tribes such as the Shompen and Sentinelese.
Islands are India's 'unsinkable aircraft carriers'; developing them sustainably is central to its Indo-Pacific strategy.
Question 3 (50 marks)
Q3(a) · Industry in India · 20 marks≈ 14 min
Location of Major Industries
Indian Pharma Industry has to move from 'volume' to 'value' leadership to capture global market. Discuss.
हिंदी में प्रश्न
भारतीय औषधीय उद्योग को वैश्विक बाजार पर कब्जा करने के लिए 'मात्रा' से लेकर 'मूल्य' नेतृत्व तक आगे बढ़ना होगा। विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q3(a)
Approach: Explain what volume and value leadership mean, show India's current volume strength and value gap, then discuss the requirements for the shift (R&D, innovation, quality, APIs, biologics, policy), with examples. Draw a diagram of the pharma value chain.
India is the third-largest producer of medicines by volume, supplying a large share of global generics and vaccines, but it ranks much lower by value because it mainly makes low-margin, off-patent generics.
Why the value gap exists: (i) low spending on research and development compared with global innovators; (ii) dependence on China for many APIs and key starting materials; (iii) a focus on simple generics rather than new molecules, biologics or complex generics; (iv) periodic quality and regulatory lapses, such as US FDA warning letters and contaminated cough syrup exports linked to child deaths abroad in 2022; (v) price competition that keeps margins low.
What the shift to value requires: (i) innovation: drug discovery, new chemical entities and incentives under the Scheme for Promotion of Research and Innovation in Pharma MedTech (2023); (ii) complex products: biosimilars, specialty generics, vaccines and cell and gene therapies, building on successes such as Serum Institute and Biocon; (iii) backward integration: PLI for bulk drugs (2020) and bulk drug parks to reduce API imports; (iv) quality: stricter Schedule M good manufacturing practice standards and a stronger regulator; (v) academia–industry links: research clusters such as Hyderabad's Genome Valley and Pune; (vi) intellectual property and branding: moving from copying to creating, while protecting affordable access through India's patent law.
Opportunities: patent expiries of blockbuster drugs, the global push to diversify supply chains away from China, the medical devices market and contract research and manufacturing.
Diagram: Smile curve of the pharmaceutical value chain, with R&D and discovery and branding at the high-value ends and generic formulation in the low-value middle, showing India's movement towards the ends.
By combining its manufacturing scale with innovation and quality, India can move from being the world's pharmacy to its innovation hub.Q3(b) · India: Physical Setting II · 15 marks≈ 11 min
Tropical Cyclones, Western Disturbances, Floods and Droughts
Discuss the problems of floods and their management with special reference to Indo-Gangetic Plain.
हिंदी में प्रश्न
सिन्धु-गंगा मैदान के विशेष संदर्भ में बाढ़ की समस्याओं एवं उनके प्रबन्धन की विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q3(b)
Approach: Explain why the Indo-Gangetic plain floods (physical and human causes), describe the problems they create, then evaluate structural and non-structural management. Draw a map of flood-prone areas of the plain.
The Rashtriya Barh Ayog (1980) assessed about 40 million hectares of India as flood-prone, and the Indo-Gangetic plain, especially north Bihar, eastern Uttar Pradesh and northern West Bengal, is the worst affected.
Causes: concentrated monsoon rain; Himalayan rivers (Kosi, Gandak, Ghaghara, Bagmati) rising in Nepal with enormous silt loads; very gentle gradients and shifting channels; siltation of river beds; drainage congestion behind embankments, roads and railway lines; and encroachment on floodplains and wetlands.
Problems: loss of life, houses and crops every year, waterlogging and sand-casting of farmland, disease, disruption of transport, and recurring displacement of the poor; Bihar alone has about 73% of its area flood-prone (Bihar Water Resources Department). Embankment breaches, such as the Kosi at Kusaha in 2008, turn floods into disasters.
Management: structural measures include embankments, reservoirs (proposed high dams on the Kosi and Gandak in Nepal) and the Flood Management and Border Areas Programme. Non-structural measures include Central Water Commission forecasting, floodplain zoning, flood-proof raised platforms, insurance and NDMA guidelines (2008).
Evaluation: embankments give short-term protection but raise river beds and fail catastrophically; zoning laws are rarely enforced, and transboundary cooperation with Nepal is slow.
Map: Map of the Ganga plain shading the chronically flood-prone zones of north Bihar (Kosi, Gandak, Bagmati), eastern Uttar Pradesh (Rapti, Ghaghara) and Malda–Murshidabad, with the Kosi embankments.
An integrated basin approach that 'gives room to the river' and combines forecasting with community preparedness is the sustainable path.Q3(c) · Resources of India · 15 marks≈ 11 min
Energy Resources and the Energy Crisis
Critically examine the role of petroleum energy resources on International Geopolitics with special reference to India.
हिंदी में प्रश्न
भारत के विशेष संदर्भ में अंतर्राष्ट्रीय भू-राजनीति पर पेट्रोलियम ऊर्जा संसाधनों की भूमिका का समालोचनात्मक परीक्षण कीजिए।
Model answer
Paper and question: Paper II, Q3(c)
Approach: Explain why petroleum shapes international geopolitics (uneven distribution, chokepoints, cartels, sanctions), then examine critically India's position and strategies with recent examples. Draw a map of India's oil import routes and chokepoints.
Petroleum is the most geopolitical of resources because reserves are concentrated in a few regions (West Asia, Russia, the Americas), trade passes through narrow chokepoints, and producers act through OPEC+. Oil has repeatedly been used as a weapon, from the 1973 embargo to recent sanctions.
India's exposure: India is the world's third-largest oil consumer and imports about 88% of its crude (PPAC, 2024–25). Most of it passes through the Strait of Hormuz and the Bab-el-Mandeb, so the Gulf wars and Houthi attacks in the Red Sea (2023–24) directly raise its freight and insurance costs.
Geopolitical choices: (i) after 2022 India sharply increased discounted Russian crude, which became its largest source, defending this as energy security despite Western criticism and, in 2025, additional US tariffs linked to these purchases; (ii) India stopped Iranian imports in 2019 under US sanctions, slowing projects such as Chabahar; (iii) strong ties with Saudi Arabia, the UAE and Iraq, including strategic partnerships and investment in refining.
Strategies: strategic petroleum reserves at Visakhapatnam, Mangaluru and Padur; overseas equity through ONGC Videsh (Sakhalin-1, Mozambique); diversification to the US, Guyana and Africa; ethanol blending (E20) and electric mobility to cut demand.
Critical view: oil diplomacy gives India leverage as a large buyer, but it remains vulnerable to price shocks, sanctions regimes and great-power rivalry.
Map: World map showing India's main crude sources (Russia, Iraq, Saudi Arabia, UAE, US) and sea routes through Hormuz, Bab-el-Mandeb and the Cape, with India's strategic reserve sites.
Reducing oil dependence through the energy transition is ultimately India's best geopolitical insurance.
Question 4 (50 marks)
Q4(a) · Cultural Setting and Population of India · 20 marks≈ 14 min
Growth, Distribution, Density and Demographic Attributes of Population
With falling fertility rate and rising median age, how can India translate demographic dividend to economic dividend?
हिंदी में प्रश्न
गिरती प्रजनन दर और बढ़ती औसत आयु के साथ, भारत जनसांख्यिकीय लाभांश को आर्थिक लाभांश में कैसे बदल सकता है?
Model answer
Paper and question: Paper II, Q4(a)
Approach: Define demographic dividend and show India’s window with data on fertility, median age and working-age share; identify the barriers (skills, female work, jobs, health, regional mismatch) and give a strategy with schemes. Draw an age pyramid comparison.
The demographic dividend is the growth potential that arises when the working-age share of the population rises relative to dependants. With TFR at 2.0 (NFHS-5, 2019–21) and a median age of about 28 years, India is in this window; the Economic Survey 2018–19 projects the working-age share to peak around 2041, after which ageing (60+ rising from 10.5% in 2022 to 20.8% in 2050, India Ageing Report 2023) will close it.
Barriers: (i) low female labour force participation, 41.7% in PLFS 2023–24, though rising; (ii) a large informal sector and heavy dependence on agriculture (46.1% of workers); (iii) skill deficits and weak learning outcomes; (iv) malnutrition, with 35.5% of children stunted (NFHS-5), which lowers future productivity; (v) a regional mismatch: the young population is in Bihar and Uttar Pradesh, while jobs and ageing are in the south and west.
Strategy: human capital first: foundational learning and vocational streams under NEP 2020, Skill India and PMKVY (2015), and nutrition through Poshan 2.0. Job creation through labour-intensive manufacturing (PLI schemes from 2020, textile parks, electronics), MSME credit and the services sector, with infrastructure in lagging states so that jobs move closer to workers.
Women’s work: childcare, safe transport, hostels and flexible work can lift female participation, the largest untapped source of the dividend. Mobility: portable welfare (One Nation One Ration Card, e-Shram registration) eases migration from young to ageing regions.
Health and savings: Ayushman Bharat PM-JAY and preventive care keep workers productive, while pension coverage prepares for the ageing that follows.
Diagram: Two age–sex pyramids: India 2011 (broad base) and projected 2041 (bulging middle), with the working-age band 15–59 shaded.
India’s window is time-bound and regionally staggered; converting it into an economic dividend depends on jobs, skills, health and women’s participation in the next two decades.Q4(b) · Settlements in India · 15 marks≈ 11 min
Town Planning and Problems of Urbanisation
Poor quality of urban planning in India is a huge constraint in realizing the true economic potentials of urbanization. Critically examine.
हिंदी में प्रश्न
भारत में शहरी नियोजन की खराब गुणवत्ता शहरीकरण की वास्तविक आर्थिक क्षमता को साकार करने में एक बड़ी बाधा है। समालोचनात्मक परीक्षण कीजिए।
Model answer
Paper and question: Paper II, Q4(b)
Approach: Critically examine how weaknesses in urban planning (capacity, outdated master plans, land use, infrastructure, governance) limit the economic gains of urbanisation, with data and examples, then acknowledge counterpoints and suggest reforms. A flow diagram linking planning quality to agglomeration economies helps.
Cities generate agglomeration economies: larger markets, labour pooling and knowledge spillovers. Indian cities produce a large share of GDP, yet poor planning means India captures less of this potential than East Asian economies did.
How poor planning constrains growth: (i) Capacity: NITI Aayog (2021) found about 65% of 7,933 urban settlements had no master plan and a severe shortage of town planners. (ii) Restrictive land use and low FAR raise land and housing costs, pushing firms and workers to the fringe. (iii) Congestion and long commutes reduce effective labour market size in Bengaluru and Mumbai. (iv) Infrastructure deficits in water, power and drainage; urban floods (Chennai 2015, Bengaluru 2022) disrupt IT and industry. (v) Informal, unplanned growth (6.55 crore slum dwellers, 2011) lowers productivity and health. (vi) Weak municipal finance: own revenue about 1% of GDP (RBI, 2022), so cities cannot invest.
Diagram: Flow chart: weak planning → high land cost, congestion, poor services → lower agglomeration benefits → slower productivity and job growth.
Counterpoints: cities such as Surat, Indore and Ahmedabad's town planning schemes show that good planning yields results; economic potential is also limited by skills and industrial policy, not planning alone.
Reforms: GIS master plans for all towns, land pooling, transit-oriented development, empowered mayors and municipal bonds, as recommended by NITI Aayog (2021).Q4(c) · Transport, Communication and Trade · 15 marks≈ 11 min
Ports, Foreign Trade, Trade Policy and Export Processing Zones
Highlight the salient features of India's trade policy. Discuss the status of India's balance of trade with China.
हिंदी में प्रश्न
भारत की व्यापार नीति की प्रमुख विशेषताओं को चिह्नांकित कीजिए। चीन के साथ भारत के व्यापार संतुलन की स्थिति की विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q4(c)
Approach: Highlight the salient features of India's trade policy (Foreign Trade Policy 2023 and FTAs), then discuss the status, composition and causes of the trade deficit with China, ending with responses. Draw a diagram or graph of India–China trade.
Trade policy features: the Foreign Trade Policy 2023 (from April 2023) aims at 2 trillion US dollars of exports of goods and services by 2030. It moves from incentives to remission and facilitation (RoDTEP), promotes districts as export hubs, e-commerce exports and trade settlement in rupees. India has also signed new trade agreements, such as the CEPA with the UAE (2022), the ECTA with Australia (2022), the TEPA with the EFTA countries (2024) and the trade agreement with the United Kingdom (2025), while using trade defence tools (anti-dumping duties, quality control orders) and PLI schemes to build domestic manufacturing.
Balance of trade with China: in 2024–25 India's imports from China were about 113 billion US dollars and its exports about 14 billion, giving a record deficit of about 99 billion US dollars (Ministry of Commerce), the largest with any partner.
Composition and causes: India imports electronics and components, machinery, solar cells and modules, APIs, chemicals and batteries, but exports mainly raw materials such as iron ore and organic chemicals. The causes are China's manufacturing scale and low costs, India's weak supply chains in electronics and capital goods, and the import needs of India's own assembly and renewable-energy industries.
Responses: PLI schemes, restrictions on Chinese investment (Press Note 3, 2020), anti-dumping duties and supply-chain diversification.
Diagram: Bar graph of India's exports to and imports from China over recent years, showing the widening deficit.
Reducing the deficit requires deeper domestic manufacturing rather than tariffs alone.
Question 5 (50 marks)
Q5(a) · Industry in India · 10 marks≈ 7 min
Location of Major Industries
Identify the jute-producing areas and discuss the major causes of decline of jute mill industry in India.
हिंदी में प्रश्न
भारत में जूट उत्पादक क्षेत्रों की पहचान कीजिए तथा जूट मिल उद्योग में गिरावट के प्रमुख कारणों की विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q5(a)
Approach: Identify the jute-growing areas and the location of the mill industry, then discuss the major causes of the decline of jute mills. Draw a map of jute areas and Hugli mills.
Jute needs a hot, humid climate, heavy rain and fertile, annually renewed alluvium, with plenty of water for retting. It is grown mainly in the lower Ganga–Brahmaputra delta: West Bengal (Nadia, Murshidabad, North 24 Parganas, Hooghly), which produces most of India's jute, followed by Bihar (Purnia, Katihar), Assam (Nagaon, Barpeta) and Odisha, with smaller areas in Meghalaya, Tripura and Andhra Pradesh (mesta).
Mills: most jute mills lie along both banks of the Hugli near Kolkata, a location chosen for raw material, cheap water transport, coal, labour and the port.
Causes of decline: (i) Partition (1947) left most jute-growing land in East Pakistan while the mills stayed in India; (ii) competition from synthetic packaging (plastic and polypropylene bags); (iii) obsolete machinery and low productivity; (iv) labour unrest, frequent lockouts and mill closures; (v) volatile raw-jute prices and poor fibre quality; (vi) competition from Bangladesh; (vii) dependence on government orders for sacks under the Jute Packaging Materials Act (1987).
Map: Map of eastern India showing jute-growing districts of West Bengal, Bihar, Assam and Odisha, with the Hugli mill belt.
Diversified, eco-friendly jute products could revive the industry.Q5(b) · Settlements in India · 10 marks≈ 7 min
Town Planning and Problems of Urbanisation
Urban built environment in big cities of India creates key changes in biophysical character of the landscape. Discuss.
हिंदी में प्रश्न
भारत के बड़े शहरों में शहरी निर्मित वातावरण भू-दृश्य के जैव भौतिकीय चरित्र में मुख्य परिवर्तन पैदा करता है। विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q5(b)
Approach: Discuss how the urban built environment changes the biophysical elements of the landscape (land surface, hydrology, climate, vegetation and biodiversity, soils) with Indian city examples, and end with a remedy. A diagram comparing the water balance before and after urbanisation helps.
The built environment of buildings, roads and paved surfaces replaces the natural cover of soil, vegetation and water, transforming the biophysical character of the urban landscape.
Hydrology: impervious surfaces cut infiltration and raise surface runoff, so peak flows rise and groundwater recharge falls; encroached drains and lakes caused floods in Mumbai (2005), Chennai (2015) and Bengaluru (2022).
Climate: concrete and asphalt store heat and reduce evaporation, creating urban heat islands in Delhi and Ahmedabad; tall buildings alter wind flow.
Vegetation and biodiversity: IISc studies by T.V. Ramachandra record a large loss of lakes and tree cover in Bengaluru as built-up area multiplied since the 1970s; mangroves in Mumbai and wetlands such as Pallikaranai in Chennai have shrunk.
Soils and landforms: soil sealing, cutting of hills in Guwahati and the Aravallis, and reclamation of creeks.
Diagram: Two water-balance bars: natural cover (high infiltration and evapotranspiration, low runoff) against urban cover (low infiltration, high runoff).
Blue-green infrastructure, sponge-city design and protection of wetlands can restore part of these functions.Q5(c) · India: Physical Setting I · 10 marks≈ 7 min
Physiographic Regions of India
Explain the geological characteristics and ecological significance of the Eastern Ghats.
हिंदी में प्रश्न
पूर्वी घाटों की भूवैज्ञानिक विशेषताओं और पारिस्थितिक महत्त्व की व्याख्या कीजिए।
Model answer
Paper and question: Paper II, Q5(c)
Approach: Describe the extent, rocks and tectonic history of the Eastern Ghats, then their ecological significance (forests, biodiversity, watershed, tribes). Draw a map of the Eastern Ghats.
The Eastern Ghats are a discontinuous chain of hills running roughly parallel to the east coast from the Mahanadi in Odisha to the Nilgiris, breached by the Godavari, Krishna and Kaveri.
Geology: they form the Eastern Ghats Mobile Belt of Proterozoic high-grade metamorphic rocks, chiefly khondalites (named after the Khond tribe) and charnockites. These rocks were deformed and metamorphosed in an ancient collision of the Indian shield with East Antarctica about a billion years ago. Unlike the Western Ghats they are old, eroded residual hills, rising to about 1,680 m at Arma Konda.
Ecological significance: dry and moist deciduous forests with sal, teak and red sanders shelter tigers in Nagarjunsagar–Srisailam and the Papikonda National Park. The hills are the source of rivers such as the Vamsadhara and Nagavali, home to tribes like the Chenchus and Kondhs, and the Koraput region is a recognised centre of rice diversity.
Map: Outline map of eastern India marking the Eastern Ghats from Odisha to the Nilgiris with Arma Konda, the river gaps, Nallamala and Papikonda.
Mining and forest loss threaten this fragile belt, which needs the same conservation attention as the Western Ghats.Q5(d) · Cultural Setting and Population of India · 10 marks≈ 7 min
Racial, Linguistic, Ethnic and Religious Diversity; Cultural Regions
Explain the cultural regions of India based on their cultural attributes.
हिंदी में प्रश्न
भारत के सांस्कृतिक क्षेत्रों की उनकी सांस्कृतिक विशेषताओं के आधार पर व्याख्या कीजिए।
Model answer
Paper and question: Paper II, Q5(d)
Approach: Define a cultural region, state the attributes used (language, religion, ethnicity, livelihood), describe the major cultural regions and conclude on their overlapping nature. Draw a cultural regions map.
A cultural region is an area whose people share traits such as language, religion, ethnicity, food, dress and livelihood, giving it a distinct identity. In India, language families and religion are the most useful attributes for delimiting them.
Indo-Aryan north: the Hindi heartland of the Ganga plain, with Punjabi, Rajasthani, Gujarati, Marathi, Bengali and Odia sub-regions; Hindu majority with a Sikh core in Punjab and Muslim concentration in the western Ganga plain.
Dravidian south: Tamil, Telugu, Kannada and Malayalam regions with Dravidian temple architecture, rice-based diet and a Christian and Muslim presence on the Kerala coast.
Austric tribal heartland: the Chota Nagpur–Bastar belt of Munda, Santhal and Gond peoples, with animist Sarna traditions and forest economies. Tibeto-Burman Himalaya and North East: Buddhist Ladakh, Sikkim and Arunachal, and Christian tribal Nagaland, Mizoram and Meghalaya.
Map: Outline map of India marking the Indo-Aryan north, Dravidian south, Austric central tribal belt, Tibeto-Burman Himalaya and North East, and the Kashmir and Punjab cultural cores.
These regions overlap at the margins (for example the Marathi–Kannada border belt), so boundaries are transition zones rather than sharp lines.Q5(e) · Resources of India · 10 marks≈ 7 min
Mineral Resources
Why are critical minerals essential for the economic development and national security in India?
हिंदी में प्रश्न
भारत के आर्थिक विकास और राष्ट्रीय सुरक्षा के लिए क्रांतिक खनिज क्यों आवश्यक हैं?
Model answer
Paper and question: Paper II, Q5(e)
Approach: Define critical minerals and India's list, then explain their importance for economic development and national security, with India's vulnerability and policy response. Draw a map of known critical mineral sites.
Critical minerals are minerals essential to the economy whose supply is at risk; the Ministry of Mines identified 30 of them in 2023, including lithium, cobalt, nickel, graphite and rare earth elements.
Economic development: they are indispensable for electric-vehicle batteries, solar panels, wind turbines and grid storage, which are central to the 500 GW non-fossil target and net zero by 2070, and for electronics, semiconductors and advanced manufacturing under Make in India and PLI schemes.
National security: rare earth magnets, titanium and tungsten are used in missiles, aircraft, radar and satellites. India imports nearly all its lithium, cobalt and nickel, and processing is concentrated in China, making supply chains a strategic vulnerability.
Response: the MMDR Amendment Act (2023) opened exploration and auctions to private firms; KABIL is acquiring lithium blocks in Argentina; India joined the Minerals Security Partnership (2023); GSI found lithium resources at Reasi (Jammu and Kashmir); and the National Critical Mineral Mission (2025) funds exploration, recycling and processing.
Map: Map of India marking Reasi lithium, coastal rare-earth sands of Kerala, Odisha and Tamil Nadu, and graphite in Jharkhand and Odisha.
Critical minerals are thus central to green growth and strategic autonomy.
Question 6 (50 marks)
Q6(a) · Settlements in India · 20 marks≈ 14 min
Urban Development, Morphology and Functional Classification of Indian Cities
A large number of Indian cities have a complex morphological characteristics due to their historical evolution. Elucidate.
हिंदी में प्रश्न
बड़ी संख्या में भारतीय शहरों में उनके ऐतिहासिक विकास के कारण जटिल रूपात्मक विशेषताएँ होती हैं। स्पष्ट कीजिए।
Model answer
Paper and question: Paper II, Q6(a)
Approach: Elucidate how successive historical layers (pre-colonial core, colonial additions, post-independence and post-1991 growth) coexist to give Indian cities a complex morphology, with named city examples and a comparison with western models. Draw a generalised model of the Indian city.
Most large Indian cities are not products of one plan but palimpsests: each historical period added a distinct morphological layer without erasing the earlier one, giving a multi-nuclei, mixed land-use form that the Burgess (1925) and Hoyt (1939) models cannot fully explain.
Pre-colonial core: a dense old city around a fort, palace or temple and chowk, with narrow lanes, mixed residence and commerce, and caste or occupational mohallas (Chandni Chowk in Shahjahanabad, the pols of Ahmedabad, the Charminar area of Hyderabad, the temple-centred plan of Madurai).
Colonial layer: separate civil lines, cantonment and railway colony with wide roads and bungalows, producing what A.D. King (1976) called the dual city: Delhi (old city versus New Delhi and the cantonment), Lucknow, Kanpur, Bengaluru (pete versus cantonment). Port cities such as Mumbai, Kolkata and Chennai grew around a fort and harbour with a European business district.
Post-independence layer: refugee colonies (Lajpat Nagar in Delhi), public sector townships, Development Authority colonies, industrial estates, and unplanned slums and urban villages trapped inside the city.
Post-1991 layer: IT parks and CBD-like nodes at the edge (Gurugram Cyber City, Hyderabad's HITEC City, Bengaluru's Whitefield), gated communities, malls, metro corridors and redeveloped mill lands (Lower Parel, Mumbai).
Results: many centres instead of one CBD, sharp contrasts of density and wealth side by side, high central densities (J.E. Brush, 1962), and mixed land use within the same street.
Diagram: Generalised model: old walled city with bazaar core, colonial civil lines and cantonment on one side, railway line and industrial zone, post-independence colonies, slums along drains and rail lines, and peripheral IT and gated townships along ring roads.
Thus historical evolution makes Indian urban morphology complex; planning must work with these layers, through heritage conservation (HRIDAY, 2015) and redevelopment, rather than impose a single western model.Q6(b) · Agriculture in India · 15 marks≈ 11 min
Agricultural Infrastructure and Institutional Factors
Discuss the significance of organic farming for sustainable agricultural development in India.
हिंदी में प्रश्न
भारत में सतत कृषि विकास के लिए जैविक खेती के महत्त्व की विवेचना कीजिए।
Model answer
Paper and question: Paper II, Q6(b)
Approach: Define organic farming, explain its significance for sustainable development (ecological, economic, health, climate), give Indian examples and schemes, and note its limits. Draw a map of leading organic areas.
Organic farming is a production system that avoids synthetic fertilisers, pesticides and GM seeds and relies on crop rotation, compost, green manure, biofertilisers and biological pest control to sustain soil health and ecosystems.
Ecological significance: it restores soil organic carbon and microbial life degraded by decades of chemical-intensive farming in the Green Revolution belt, reduces nitrate and pesticide pollution of water, and conserves pollinators and agro-biodiversity.
Economic significance: lower input costs reduce debt for small farmers; premium prices and exports of organic tea, spices, basmati and cotton raise incomes.
Health and climate: it yields food with fewer chemical residues, and healthier soils store more carbon and hold more moisture, improving resilience to drought.
Indian examples and schemes: Sikkim became India's first fully organic state (2016); the Paramparagat Krishi Vikas Yojana (2015) supports cluster-based organic farming; the Mission Organic Value Chain Development for the North Eastern Region (2015–16) targets the hill states; and the National Mission on Natural Farming (2024) promotes chemical-free farming. Large rainfed and tribal areas are 'organic by default'.
Limits: yields often fall during conversion, certification is costly, markets and supply chains are thin, and food security needs balanced, integrated nutrient management rather than a sudden total switch.
Map: Map of India marking Sikkim and other north-eastern states, Madhya Pradesh, Uttarakhand, Kerala and other leading organic areas.
Organic and natural farming, scaled through clusters and FPOs, can make Indian agriculture more sustainable while protecting food security.Q6(c) · Political Aspects · 15 marks≈ 11 min
India's Role in World Affairs; Geopolitics of South Asia and the Indian Ocean
Examine the geopolitical impact of bilateral relationship between India and Sri Lanka.
हिंदी में प्रश्न
भारत एवं श्रीलंका के बीच द्विपक्षीय संबंध के भू-राजनीतिक प्रभाव का परीक्षण कीजिए।
Model answer
Paper and question: Paper II, Q6(c)
Approach: Examine the geopolitical impact of India–Sri Lanka ties: geography (Palk Strait, sea lanes), ethnic and fishing issues, the China factor, India's 2022 assistance and recent agreements; map of the Palk Strait and Sri Lankan ports.
Sri Lanka lies just across the narrow Palk Strait from Tamil Nadu and sits beside the main east–west sea lane of the Indian Ocean, so its alignment directly affects India's maritime security.
Ethnic and historical ties: the Tamil question shaped relations through the Indo-Sri Lanka Accord (1987), the 13th Amendment on devolution and the IPKF (1987–90), whose failure made India cautious; Tamil Nadu's politics continues to influence policy.
Maritime issues: the 1974 agreement recognised Kachchatheevu as Sri Lankan, and arrests of Indian fishermen trawling in Sri Lankan waters remain a recurring irritant.
China factor: Hambantota port was leased to a Chinese firm for 99 years (2017) after debt problems, and the Chinese tracking vessel Yuan Wang 5 docked there in August 2022, alarming India; this debt-trap concern pushed India to compete through projects such as the Colombo West Container Terminal and the Trincomalee oil tank farm.
Crisis diplomacy: India gave about USD 4 billion in credit lines, currency swaps and supplies during Sri Lanka's 2022 economic collapse, the largest bilateral support, restoring goodwill.
Map: Map of the Palk Strait and Sri Lanka marking Kachchatheevu, Rameswaram, Jaffna, Trincomalee, Colombo and Hambantota, with the east–west sea lane south of Sri Lanka.
Since then ties have deepened, including a defence cooperation MoU in April 2025; a stable, friendly Sri Lanka is vital to India's Neighbourhood First and SAGAR goals.
Question 7 (50 marks)
Q7(a) · Resources of India · 20 marks≈ 14 min
Energy Resources and the Energy Crisis
Discuss the green energy initiatives of India as a signatory nation to the Paris Agreement.
हिंदी में प्रश्न
पेरिस समझौते पर हस्ताक्षरकर्ता राष्ट्र के रूप में भारत की हरित ऊर्जा पहल पर चर्चा कीजिए।
Model answer
Paper and question: Paper II, Q7(a)
Approach: State India's Paris commitments (NDC 2015, updated NDC 2022, Panchamrit and net zero 2070), then discuss green energy initiatives by type with progress data, and evaluate gaps. Draw a map of major renewable energy zones.
Under the Paris Agreement (2015), India's updated Nationally Determined Contribution (2022) commits it to reduce the emissions intensity of GDP by 45% from 2005 levels by 2030 and to reach about 50% of installed power capacity from non-fossil sources by 2030. At Glasgow (2021) it announced the 'Panchamrit', including 500 GW of non-fossil capacity by 2030 and net zero by 2070.
Progress: India reached the 50% non-fossil capacity share in 2025, five years early. By July 2026, non-fossil capacity was about 300 GW, over 54% of the total of about 552 GW, including about 165 GW solar, 58 GW wind, 57 GW hydro and 8.8 GW nuclear (MNRE/CEA).
Solar: the National Solar Mission (2010), ultra-mega solar parks (Bhadla in Rajasthan, Pavagada in Karnataka, Khavda in Gujarat), PM-KUSUM (2019) for farm pumps, PM Surya Ghar Muft Bijli Yojana (2024) for rooftop solar, and PLI support for module manufacturing.
Wind, hydro and others: wind–solar hybrid policy and offshore wind plans off Gujarat and Tamil Nadu; pumped storage and battery storage tenders; and bioenergy, including E20 ethanol blending.
Green hydrogen and grid: the National Green Hydrogen Mission (2023) targets 5 million tonnes a year by 2030, with hubs at ports such as Kandla, Paradip and Tuticorin, while Green Energy Corridors connect renewable-rich states to the grid.
Gaps: coal still dominates electricity generation, with non-fossil sources providing only about 29% of generation in 2025–26, and storage, transmission, land acquisition, import dependence for cells and critical minerals, and DISCOM finances remain constraints.
Map: Map of India marking Bhadla, Pavagada and Khavda solar parks, wind belts in Tamil Nadu and Gujarat, offshore wind zones, green hydrogen port hubs and Green Energy Corridors.
India's green energy initiatives are therefore ambitious and ahead of schedule on capacity, but the shift in actual generation and storage will decide whether it meets its Paris goals.Q7(b) · Agriculture in India · 15 marks≈ 11 min
Livestock, White Revolution, Aquaculture, Sericulture, Apiculture and Poultry
India's poultry sector has become one of the fastest growing areas of the country's agricultural sector. Examine its opportunities and challenges.
हिंदी में प्रश्न
भारत का पोल्ट्री क्षेत्र देश के कृषि क्षेत्र के सबसे तेजी से बढ़ते क्षेत्रों में से एक बन गया है। इसके अवसरों और चुनौतियों का परीक्षण कीजिए।
Model answer
Paper and question: Paper II, Q7(b)
Approach: Show the growth and geography of the poultry sector with data, then examine its opportunities and challenges, ending with the way forward. Draw a map of poultry clusters.
India's poultry sector has grown far faster than crop agriculture, turning from backyard rearing into a commercial, largely vertically integrated industry. India produced about 143 billion eggs in 2023–24 (Basic Animal Husbandry Statistics) and is among the world's leading producers of eggs and broiler meat.
Geography: the industry is concentrated in the south and west, with Andhra Pradesh, Tamil Nadu (the Namakkal egg cluster), Telangana, Karnataka and Maharashtra leading, alongside Haryana and West Bengal; backyard poultry remains important in tribal and north-eastern areas.
Opportunities: (i) rising demand for affordable animal protein with urbanisation and changing diets; (ii) short production cycles and quick returns suit small farmers through contract farming; (iii) nutrition gains, since eggs in mid-day meals and anganwadis help tackle malnutrition; (iv) employment for women in backyard units.
Challenges: (i) feed costs, since maize and soybean meal make up most of the cost and their prices are volatile; (ii) diseases such as avian influenza, which force mass culling; (iii) antibiotic misuse and antimicrobial resistance; (iv) dependence of contract growers on large integrators; (v) weak cold chains and processing, as most chicken is sold live.
Way forward: feed security through maize expansion, biosecurity and vaccination, controls on antibiotics, processing and cold chains, and support for backyard poultry under the National Livestock Mission.
Map: Map of India marking major poultry clusters: Namakkal, Hyderabad–Chittoor, Pune–Nashik, Haryana and West Bengal.
With sustainable feed and biosecurity, poultry can remain the fastest-growing source of farm income and nutrition.Q7(c) · Regional Development and Planning in India · 15 marks≈ 11 min
Command Area Development and Watershed Management
Critically examine the ecological and economic impact of Indira Gandhi Canal Command Area development.
हिंदी में प्रश्न
इन्दिरा गाँधी नहर कमांड क्षेत्र विकास के पारिस्थितिक और आर्थिक प्रभाव का समालोचनात्मक परीक्षण कीजिए।
Model answer
Paper and question: Paper II, Q7(c)
Approach: Introduce the Indira Gandhi Canal and its command, then critically weigh economic gains against ecological costs with examples, ending with a balanced verdict. Draw a map of the canal.
The Indira Gandhi Canal (Rajasthan Canal until 1984), begun in 1958, takes Sutlej-Beas water from the Harike barrage in Punjab into the Thar desert. Its Rajasthan feeder (about 204 km) and main canal (about 445 km) serve a command in Sri Ganganagar, Hanumangarh, Bikaner, Jaisalmer, Barmer, Jodhpur and Churu districts; command area development began here in the mid-1970s.
Economic impact: irrigation turned pastoral desert into farmland growing wheat, mustard, cotton, groundnut and guar; Sri Ganganagar and Hanumangarh became a granary of Rajasthan; drinking water reached towns and villages as far as Jaisalmer and Barmer; colonisation settled landless families, and mandis, roads and agro-processing grew.
Ecological impact, positive: canal-side shelter belts and pasture development checked shifting sand and increased green cover and soil moisture.
Ecological impact, negative: seepage and over-irrigation caused waterlogging and salinity in parts of Stage I; introduced species such as Prosopis juliflora spread; native desert grasslands shrank, harming wildlife like the Great Indian Bustard; malaria incidence rose with standing water.
Social and economic concerns: benefits are uneven between head and tail reaches, traditional pastoralism declined, and water supply depends on Punjab's releases.
Map: outline of western Rajasthan showing Harike barrage, the feeder and main canal ending near Mohangarh (Jaisalmer), lift canals, and the command districts with waterlogged pockets shaded.
Overall the project is an economic success with real ecological costs; drip and sprinkler irrigation, drainage, crop zoning away from water-intensive crops and conservation of desert habitats are the way forward.
Question 8 (50 marks)
Q8(a) · Agriculture in India · 20 marks≈ 14 min
Cropping Pattern, Productivity, Intensity, Crop Combination and Land Capability
Why India lags behind many other countries in agricultural productivity? Suggest suitable measures to raise productivity across the regions in a sustainable manner.
हिंदी में प्रश्न
भारत कृषि उत्पादकता में कई अन्य देशों से पीछे क्यों है? सभी क्षेत्रों में टिकाऊ तरीके से उत्पादकता बढ़ाने के लिए उपयुक्त उपाय सुझाइए।
Model answer
Paper and question: Paper II, Q8(a)
Approach: Show the productivity gap with comparative evidence, explain its physical, technological, institutional and economic causes, then suggest region-specific sustainable measures. Draw a map of crop yield variation across India.
India is among the world's largest producers of rice, wheat, pulses and milk, but its agricultural productivity (output per hectare and per worker) lags behind countries such as China, Egypt and the United States; for example, its paddy yield is well below China's, and yields vary several-fold between Punjab and Jharkhand.
Physical causes: about half the net sown area is rain-fed and exposed to monsoon variability, while soils are degraded by erosion, salinity and nutrient mining.
Technological causes: low seed replacement rates, imbalanced fertiliser use, limited mechanisation on small farms and weak extension services.
Institutional causes: tiny and fragmented holdings (average 1.08 ha), insecure tenancy, inadequate credit and insurance, and MSP procurement concentrated in a few states and crops.
Economic causes: poor markets, storage and processing raise post-harvest losses; low public investment in research and irrigation; and disguised unemployment, with too many workers on the land, lowers labour productivity.
Measures (region-specific and sustainable): (i) eastern India: extend the Bringing Green Revolution to Eastern India approach with tube-wells, flood-tolerant rice and better markets; (ii) rain-fed central and western India: watershed development, micro-irrigation, drought-tolerant millets and pulses, and soil moisture conservation; (iii) north-west: diversify away from paddy, restore soil health and save groundwater; (iv) hills and north-east: horticulture, organic farming and value chains; (v) everywhere: quality seeds, soil health cards, digital advisories, FPOs, crop insurance, investment in research and climate-resilient varieties.
Map: Map of India showing districts of high yields (Punjab, Haryana, western Uttar Pradesh, coastal Andhra Pradesh) and low yields (rain-fed Rajasthan, Jharkhand, Odisha, the north-east).
Raising yields in lagging regions, rather than further intensifying already high-input areas, is the most sustainable way to increase India's agricultural productivity.Q8(b) · Regional Development and Planning in India · 15 marks≈ 11 min
Backward, Desert, Drought-prone, Hill, Tribal Area and Island Development
Assess the ecotourism potential of Andaman and Nicobar, Lakshadweep islands and highlight the challenges associated with the sustainable development of island territories.
हिंदी में प्रश्न
अण्डमान और निकोबार द्वीपसमूह एवं लक्षद्वीप की पारिस्थितिकी-पर्यटन क्षमता का आकलन कीजिए और द्वीप क्षेत्रों के सतत विकास से जुड़ी चुनौतियों पर प्रकाश डालिए।
Model answer
Paper and question: Paper II, Q8(b)
Approach: First assess the ecotourism potential of each island group with named sites, then highlight the challenges of sustainable development, and close with a sustainable model. Draw maps of both island groups with tourist sites.
Ecotourism is responsible travel to natural areas that conserves the environment and benefits local people. India's island territories, with coral reefs, rainforests and lagoons, are among its richest ecotourism assets.
Andaman and Nicobar potential: Radhanagar beach on Swaraj Dweep (Havelock) holds Blue Flag certification; Mahatma Gandhi Marine National Park (Wandoor) offers coral viewing and snorkelling; Baratang has limestone caves and mud volcanoes; Barren Island is India's only active volcano; the Cellular Jail at Sri Vijayapuram adds heritage tourism.
Lakshadweep potential: coral atolls and lagoons at Agatti, Bangaram and Kadmat suit diving and water sports; Thundi beach (Minicoy) and Kadmat beach received Blue Flag status (2023); traditional tuna fishing and coconut culture add cultural interest.
Challenges: limited fresh water and land; waste and sewage on small islands; coral bleaching (severe in Lakshadweep in 2024) and sea-level rise; protection of PVTGs such as the Jarawa, where tourist 'human safaris' on the Andaman Trunk Road drew Supreme Court intervention; dependence on diesel power and costly air and sea connectivity; tsunami and cyclone risk.
Map: inset maps of Andaman and Nicobar (Swaraj Dweep, Wandoor, Baratang, Barren Island, Sri Vijayapuram) and Lakshadweep (Agatti, Bangaram, Kadmat, Minicoy).
A sustainable model needs carrying-capacity limits, community-owned homestays, solar power and desalination, waste management, and strict application of the Island Coastal Regulation Zone (2019) rules.Q8(c) · Cultural Setting and Population of India · 15 marks≈ 11 min
Migration, Population Problems, Policies and Health Indicators
Describe the regional variations of health indicators among the Indian States.
हिंदी में प्रश्न
भारतीय राज्यों में स्वास्थ्य संकेतकों की क्षेत्रीय विविधताओं का वर्णन कीजिए।
Model answer
Paper and question: Paper II, Q8(c)
Approach: Select key health indicators (IMR, MMR, life expectancy, nutrition), describe their regional variation with SRS and NFHS-5 data, explain the causes and identify regional groupings. Draw a choropleth.
Health indicators such as infant mortality, maternal mortality, life expectancy and child nutrition measure a population’s well-being. India has improved steadily, with IMR at 27 in 2021 (SRS) and MMR at 97 in 2018–20, but the regional gaps are wide.
Mortality: in SRS 2020 the infant mortality rate ranged from 6 in Kerala to 43 in Madhya Pradesh. The maternal mortality ratio in 2018–20 ranged from 19 in Kerala to 195 in Assam. Life expectancy at birth (2016–20) varied from 65.1 years in Chhattisgarh to 75.8 in Delhi, against 70.0 nationally.
Nutrition: NFHS-5 (2019–21) found 35.5% of children stunted nationally, but 46.5% in Meghalaya and 42.9% in Bihar compared with about 23% in Kerala.
Regional groupings: (i) the southern states, Punjab, Himachal Pradesh and Delhi with good indicators; (ii) the central and eastern belt of Uttar Pradesh, Bihar, Madhya Pradesh, Chhattisgarh, Jharkhand, Odisha and Assam with the worst; (iii) the North East and tribal areas with mixed results. NITI Aayog’s Health Index ranked Kerala top and Uttar Pradesh bottom among large states (2019–20).
Causes: female literacy, health-system strength (doctors, institutional delivery, immunisation), income, sanitation, nutrition and remoteness.
Map: Choropleth of states by IMR (SRS 2020) in three classes, showing the southern low-mortality zone and the central high-mortality belt.
Focused investment through the National Health Mission, Ayushman Bharat and nutrition missions in the central belt is the key to narrowing these gaps.