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    Science and Technology: Concise UPSC Notes and Quick Revision

    These notes cover key Science and Technology concepts and applications relevant for UPSC, with a focus on linking fundamentals to current developments.

    Chapter index

    How to study Science & Technology· about 12 Prelims questions a year (2013–2024)Show

    What UPSC asks most

    Biology and health, biotechnology, space, IT and emerging technology, defence and nuclear technology, mostly linked to news.

    Most-asked topics in past papers: Biology, Biotechnology, Space. See the trend

    Traps to avoid

    • Mixing up similar technologies or mission names.
    • Statements that overstate what a technology does.

    How to study it here

    1. Read the basic science once, then follow the technology chapters through current affairs.
    2. Note new missions, vaccines and technologies in the news with one line on how they work.

    Mains: GS III: explain the technology simply, then its uses and concerns.

    Science & Technology

    Chapter notes in English and Hindi, with tests and past questions

    Science & Technology Playlist

    12 chapters • 0 completed

    1

    General Physics

    10 topics

    2

    General Chemistry

    8 topics

    3

    General Biology

    24 topics

    4

    Human Body

    27 topics

    5

    Cell Biology

    26 topics

    6

    Biotechnology

    24 topics

    7

    Information Technology

    26 topics

    8

    Space Technology

    33 topics

    9

    Defence Technology

    20 topics

    10

    Nuclear Technology

    11 topics

    11

    Nano and Emerging Technology

    11 topics

    12

    Internal Security

    10 topics

    Practice
    Progress (0%)
    0 / 12 complete

    Chapter 12: Internal Security

    Chapter Test
    10 topics•Estimated reading: 30 minutes
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    Science & Technology: chapter-wise UPSC notes

    Read any chapter as a full page in English or Hindi. 12 chapters · 230 topics.

    1. 1. General Physicsहिंदी
    2. 2. General Chemistryहिंदी
    3. 3. General Biologyहिंदी
    4. 4. Human Bodyहिंदी
    5. 5. Cell Biologyहिंदी
    6. 6. Biotechnologyहिंदी
    7. 7. Information Technologyहिंदी
    8. 8. Space Technologyहिंदी
    9. 9. Defence Technologyहिंदी
    10. 10. Nuclear Technologyहिंदी
    11. 11. Nano and Emerging Technologyहिंदी
    12. 12. Internal Securityहिंदी

    Science & Tech in the news

    Recent current affairs linked to the syllabus topic they belong to.

    All current affairs