
The Complete UPSC Syllabus, Micro-Listed: Every Topic in Prelims, Mains and Optional
The official UPSC syllabus is famously written in broad, vague lines. This breaks every one of those lines down into the actual sub-topics hiding inside it, so you have a real checklist to prepare and revise against — not just a page of headings.
Read the UPSC notification's syllabus section and you'll find sentences like "Indian Polity and Governance" and "Current events of national and international importance." Technically accurate. Practically useless for planning a study schedule. Each of those lines is really a bundle of dozens of smaller, nameable topics — and not knowing that bundle is exactly how aspirants under-prepare a paper while believing they've "covered the syllabus."
This is that bundle, unpacked. Every section below expands one official syllabus line into the specific areas examiners actually draw questions from, based on how the syllabus has consistently been interpreted and tested.
01Prelims — General Studies Paper I (200 marks, merit-determining)
History
Geography
Polity & Governance
Economic & Social Development
Society & Environment
Current Affairs
02Prelims — CSAT Paper II (200 marks, qualifying — 33% required)
03Mains — Qualifying Papers (not counted in merit)
- Paper A — Indian Language: 300 marks, any language from the Eighth Schedule. Minimum 25% required to qualify.
- Paper B — English: 300 marks. Minimum 25% required to qualify.
04Mains — Essay (250 marks)
No fixed topic list — candidates choose from a set of broad themes on the day and write two essays. It rewards structured argument and multi-dimensional thinking over pre-written content, which is exactly why it's the paper most candidates under-prepare for.
05Mains — General Studies Paper I (250 marks · Heritage, History, Geography, Society)
Indian Heritage & Culture
History
Society
Geography
06Mains — General Studies Paper II (250 marks · Governance, Constitution, Polity, IR)
Constitution & Polity
Governance
International Relations
07Mains — General Studies Paper III (250 marks · Economy, S&T, Environment, Security)
Economy
Science & Technology
Environment & Disaster Management
Internal Security
08Mains — General Studies Paper IV (250 marks · Ethics, Integrity & Aptitude)
09Optional Subject (2 papers × 250 marks = 500 marks)
One subject, chosen from a list of 48, examined across two papers at honours-degree level. The syllabus for your chosen subject is entirely separate from everything above and needs its own dedicated preparation plan.
25 Core Subjects
- Agriculture, Animal Husbandry & Veterinary Science, Anthropology, Botany, Chemistry, Civil Engineering, Commerce & Accountancy, Economics, Electrical Engineering, Geography, Geology, History, Law, Management, Mathematics, Mechanical Engineering, Medical Science, Philosophy, Physics, Political Science & International Relations, Psychology, Public Administration, Sociology, Statistics, Zoology
23 Literature Subjects
- Assamese, Bengali, Bodo, Dogri, Gujarati, Hindi, Kannada, Kashmiri, Konkani, Maithili, Malayalam, Manipuri, Marathi, Nepali, Odia, Punjabi, Sanskrit, Santhali, Sindhi, Tamil, Telugu, Urdu and English literature
10Personality Test (275 marks)
No fixed syllabus — a board assesses mental alertness, critical powers of assimilation, balance of judgement, and the candidate's overall suitability for a career in public service, built largely around your Detailed Application Form (DAF).
11How it all adds up
| Stage | Marks | Counts toward merit? |
|---|---|---|
| Prelims (GS + CSAT) | 400 | No — qualifying only, screens for Mains |
| Mains — Language & English papers | 600 | No — qualifying only (25% each) |
| Mains — Essay | 250 | Yes |
| Mains — GS Papers I–IV | 1,000 | Yes |
| Mains — Optional Papers I & II | 500 | Yes |
| Personality Test | 275 | Yes |
| Final merit total | 2,025 | Written 1,750 + Interview 275 |
- Treat this as a checklist, not a reading order. Tick off sub-topics as you genuinely finish them — "I've read Modern History" and "I can write a structured answer on all seven freedom-struggle sub-topics" are very different claims.
- The overlap between Prelims and Mains GS is real. History, Geography, Polity and Economy static portions serve both stages — build them once, deep enough for a Mains answer, not just an MCQ.
- Essay and GS Paper IV don't have a fixed topic list on paper, but they do in practice. Both reward familiarity with recurring themes — ethical frameworks, governance debates, social issues — more than raw memorisation.
- Your optional subject is a separate project. Don't let its depth requirements bleed into your GS study time, or vice versa — plan them as two parallel tracks.
Turn this checklist into a study plan
Our UPSC foundation and answer-writing programs are built directly around this syllabus breakdown — sectional coverage, current-affairs integration, and structured Mains answer practice.
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