UPSC Civil Services Syllabus: Prelims and Mains, Paper by Paper

UPSC Civil Services Syllabus: Prelims and Mains, Paper by Paper

By Aaditya Vikram Parmar, Director, Career Power Mumbai Centres

The UPSC syllabus is short on paper and vast in practice. The official document runs to a few pages; the skill lies in knowing how deep to go in each line. This guide sets out every paper and what it really asks for.

Prelims Paper I: General Studies

• Current events of national and international importance.
• History of India and the Indian national movement.
• Indian and world geography: physical, social and economic.
• Indian polity and governance: Constitution, political system, Panchayati Raj, public policy, rights issues.
• Economic and social development: poverty, inclusion, demographics, social sector initiatives.
• Environment, ecology, biodiversity and climate change.
• General science.

Prelims Paper II: CSAT

• Comprehension.
• Interpersonal and communication skills.
• Logical reasoning and analytical ability.
• Decision making and problem solving.
• General mental ability.
• Basic numeracy and data interpretation at Class 10 level.

Mains: the nine papers

How to read the syllabus

• Print it. Keep it on your desk. Every topic you study should map to a line in it.
• Link current affairs to the static syllabus. A news item on a Governor’s powers belongs under polity, not in a separate notebook.
• Use previous years’ papers to judge depth. They are the only reliable guide to what UPSC means by each topic.
• Prelims and Mains overlap by more than half. Study each subject once, for both.
• Ethics (GS IV) and Essay need practice, not reading. Start them early.

Choosing the optional

• Interest first. You will spend 400 hours or more with it.
• Check the overlap with General Studies: public administration, sociology, geography, history and political science all overlap.
• Check the availability of guidance and material in your medium.
• Do not choose on the basis of last year’s topper.

Frequently asked questions

Has the UPSC syllabus changed recently?

The structure has been stable for years. The 2026 notification changed application and verification procedures, not the papers.

Is the optional subject compulsory?

Yes. It carries 500 of the 1,750 Mains marks.

Which NCERTs should I read?

Classes 6 to 12 for history, geography, polity, economics and science. They are the base for both stages.

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