UPSC CSEScience & Technology
Science & Technology for UPSC CSE
8–12 questions, almost entirely current-affairs-driven on a compact static base.
📊 8–12 Q · 16–24 marks (~10% of GS Paper I)🚀
How toppers play this section
Science & Tech is the smallest static block but among the highest current-affairs density: an ISRO launch, a new defence platform or a biotech breakthrough becomes a question almost the moment it makes news. The static base — how satellites/orbits work, vaccine/genome-editing mechanisms, missile and defence-system categories — is what turns a headline you half-remember into a question you can actually answer.
Chapters
Built to the UPSC CSE blueprint — notes, shortcuts, solved PYQ-style examples and practice in every chapter.
Topic-wise weightage in UPSC CSE
Expected question counts from previous-year paper analyses. Topics with an arrow already have a full chapter.
| Topic | Prelims Q | Mains Q | Priority |
|---|---|---|---|
| How to crack Science & Tech for Prelims (mechanism-over-memorisation method) | — | Very high | |
| Space technology & defence | 4–5 | High | |
| Biotechnology, IT & health | 4–5 | High |
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