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UPSC Mains Syllabus 2026: All 9 Papers, Marks

Complete UPSC Mains syllabus 2026 — GS Paper 1, 2, 3, 4, Essay, optional & language papers, marks, exam pattern.

Competer 22 Jul 2026 13 min read Updated 22 Oct 2026

UPSC Mains Syllabus 2026: All 9 Papers, Marks

The UPSC Mains syllabus covers 9 descriptive papers written over 5 days: two qualifying language papers (Paper A — an Indian language, Paper B — English), the Essay paper, four General Studies papers (GS 1, 2, 3 and 4), and two Optional subject papers. Of these, 7 papers count for merit (1750 marks) and the 2 language papers are only qualifying at 25% each. This guide breaks down every paper topic-by-topic as per the official UPSC notification, maps each theme to study material and previous-year weightage, and gives you a downloadable syllabus PDF and revision checklist.

UPSC Mains Syllabus 2026 & Exam Pattern at a Glance

Before the topic-wise breakdown, it helps to see the full UPSC Mains exam pattern and syllabus in one table. The Mains stage is descriptive (written) and follows the objective Prelims. Every candidate who clears Prelims writes all 9 papers; each paper is 3 hours long and is written by hand.

Paper	Subject	Marks	Nature	Duration
Paper A	Compulsory Indian Language	300	Qualifying (25%)	3 hrs
Paper B	English	300	Qualifying (25%)	3 hrs
Paper I	Essay	250	Merit	3 hrs
Paper II	General Studies I	250	Merit	3 hrs
Paper III	General Studies II	250	Merit	3 hrs
Paper IV	General Studies III	250	Merit	3 hrs
Paper V	General Studies IV (Ethics)	250	Merit	3 hrs
Paper VI	Optional Paper 1	250	Merit	3 hrs
Paper VII	Optional Paper 2	250	Merit	3 hrs

The total UPSC Mains merit marks are 1750 (4 GS × 250 = 1000, Essay 250, Optional 2 × 250 = 500). Adding the Personality Test (Interview) of 275 marks gives a grand total of 2025 marks that determine the final rank. The two qualifying language papers do not add to the merit total, but you must clear both — marks in the merit papers are counted only if you pass Paper A and Paper B.

Key facts about the UPSC Mains syllabus (quick reference)

Total papers: 9 (2 qualifying + 7 merit).
Merit marks: 1750; with interview, 2025.
Qualifying cut-off: 25% each in Paper A and Paper B.
Answer type: fully descriptive/analytical, handwritten.
Exam window: spread across roughly 5 days.
Source of truth: the annual Civil Services Examination notification on upsc.gov.in.

The UPSC office at Dholpur House, New Delhi. Photo: Ramesh lalwani, Wikimedia Commons, CC BY-SA 4.0.

Qualifying Language Papers — Paper A & Paper B

These are the two papers aspirants most often underestimate. Both are qualifying at 25% (75 out of 300), and failing either means your GS and Optional answer sheets are never evaluated — your entire year of preparation goes unassessed. UPSC releases the language-paper marks only as pass/fail, so they carry zero merit weight but full elimination power.

Paper A — Compulsory Indian Language

You choose one language listed in the Eighth Schedule of the Constitution (from the 22 scheduled languages). Candidates from Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland and Sikkim are exempt from Paper A. The pattern tests basic language comprehension:

Comprehension of given passages
Precis writing
Usage and vocabulary
Short essays
Translation (English to the chosen Indian language and vice versa)

Paper B — English

English follows the same structure — comprehension, precis, usage/vocabulary, and short essays. The standard is roughly matriculation level, so a few timed practice papers are usually enough. Treat both as “do-not-neglect” qualifiers: spend 10–15 hours on precis and translation practice rather than assuming they are automatic. A handful of candidates each year clear the merit cut-off comfortably yet miss selection because they slipped below 25% here.

UPSC Mains GS Paper 1, 2, 3, 4 Syllabus — Full Breakdown

The heart of the upsc mains gs paper 1 2 3 4 syllabus is four General Studies papers of 250 marks each. Below, each paper is expanded topic-by-topic with a study-material and previous-year-question (PYQ) weightage note so you can prioritise. A single, fully-expanded set of tables like this is far easier to revise from than click-through link lists.

GS Paper I — Heritage, History, Society & Geography

GS Paper 1 tests Indian culture, the whole arc of modern Indian history and the world, plus society and geography. It rewards a strong static foundation.

Theme	Key Topics	Indicative PYQ Weight
Indian Heritage & Culture	Art forms, literature, architecture from ancient to modern times	2–3 questions
Modern Indian History	Mid-18th century onwards — events, personalities, issues	2–3 questions
Freedom Struggle	Its various stages and important contributors/contributions from different parts of the country	2 questions
Post-Independence	Consolidation and reorganisation within the country	1–2 questions
World History	18th century events — industrial revolution, world wars, colonisation, decolonisation, political philosophies (capitalism, socialism, communism)	1–2 questions
Indian Society	Salient features, diversity, role of women, population, poverty, urbanisation, globalisation, communalism, regionalism, secularism	3–4 questions
Geography	Physical geography, distribution of natural resources, factors for location of industries, geophysical phenomena (earthquakes, tsunami, cyclones)	3–4 questions

Because GS 1 is heavily static, a consolidated notes set pays off. Many toppers pair NCERTs with a compact printed set such as the Vision IAS complete GS Notes (Prelims + Mains), then add value-added material for culture and society through the Vision IAS GS Value Added Materials.

GS Paper II — Governance, Constitution, Polity, Social Justice & IR

GS Paper 2 is the most current-affairs-linked GS paper. The Constitution is static, but governance, welfare schemes and international relations demand constant news integration.

Theme	Key Topics
Constitution & Polity	Historical underpinnings, evolution, features, amendments, basic structure; separation of powers; comparison with other democracies
Federalism & Structure	Devolution of powers, Centre-State relations, local self-government, functions of Union & State
Governance	Statutory, regulatory and quasi-judicial bodies; role of civil services; citizens’ charters; transparency, accountability, e-governance
Social Justice	Welfare schemes for vulnerable sections, mechanisms/laws/institutions; issues of health, education, human resources; poverty and hunger
International Relations	India and its neighbourhood; bilateral, regional & global groupings; effect of policies of developed/developing countries; important institutions/agencies/fora

Pair the static Polity portion with a focused resource like the Vajiram Polity Notes, and keep the dynamic governance/IR portion fed with a monthly current-affairs magazine so your answers cite the latest committees, judgments and summits.

GS Paper III — Economy, Environment, Science-Tech & Security

GS Paper 3 spans the economy, agriculture, infrastructure, technology, environment, disaster management and internal security. It is broad, so mapping the syllabus to news is essential.

Theme	Key Topics
Indian Economy	Planning, mobilisation of resources, growth, development, employment; inclusive growth; government budgeting
Agriculture	Cropping patterns, irrigation, storage/transport/marketing; e-technology for farmers; subsidies & MSP; food processing; food security & PDS
Infrastructure	Energy, ports, roads, airports, railways; investment models
Science & Technology	Developments and applications; indigenisation; achievements of Indians; awareness in IT, space, computers, robotics, nano-tech, biotech; IPR issues
Environment	Conservation, environmental pollution and degradation, environmental impact assessment, biodiversity
Disaster Management	Disasters and disaster management
Internal Security	Linkages of development & spread of extremism; role of external state/non-state actors; cyber security; money-laundering; border management; security forces & agencies

Economy alone can draw 4–6 questions, so a clean economy resource such as the Vision IAS Economics Notes plus regular current affairs is a high-return combination.

GS Paper IV — Ethics, Integrity & Aptitude

The upsc mains gs 4 ethics syllabus is unique: it tests your attitude and approach to integrity, probity and problem-solving through both theory and a large case-study section (usually 6 cases worth roughly 120 of the 250 marks). This is the direct answer to “what is the syllabus of GS Paper 4 (Ethics) in UPSC Mains” — the table below lists every listed component.

Component	Key Topics
Ethics & Human Interface	Essence, determinants and consequences of ethics; dimensions; ethics in private and public relationships; human values; role of family, society and educational institutions
Attitude	Content, structure, function; influence and relation with thought and behaviour; moral and political attitudes; persuasion
Aptitude & Foundational Values	Integrity, impartiality, non-partisanship, objectivity, dedication to public service, empathy, tolerance and compassion towards the weaker sections
Emotional Intelligence	Concepts, and their utility and application in administration and governance
Moral Thinkers	Contributions of moral thinkers and philosophers from India and the world
Public/Civil Service Values	Status and problems; ethical concerns and dilemmas; laws, rules, regulations and conscience as sources of guidance; accountability and governance; probity
Probity in Governance	Concept of public service; philosophical basis of governance and probity; RTI, codes of ethics/conduct, citizen’s charters, work culture, quality of service delivery, challenge of corruption
Case Studies	Case studies on the above issues

Ethics is scoring but needs a structured approach — definitions, keywords, thinkers and ready-to-use case-study frameworks. A dedicated booklet like the Drishti IAS Ethics Notes helps you build a repository of examples and quotations that lift answer quality.

Essay Paper — Nature, Themes & Strategy

The Essay paper (250 marks) requires writing two essays, one from each of two sections, typically 1000–1200 words each in three hours. UPSC states candidates must “keep closely to the subject of the essay, arrange ideas in orderly fashion, and write concisely.” Themes fall into three broad buckets:

Contemporary/socio-economic: education, technology, governance, development.
Abstract/philosophical: single-line prompts such as “Wisdom finds truth” that reward interpretation and multi-dimensional thinking.
Reflective/ethical: essays blending values with current issues.

Essay is where a small mark difference can move your rank sharply, yet many aspirants prepare it last. Building a bank of quotes, examples and structures through the Vajiram Essay Notes and writing at least 8–10 full essays before the exam is a reliable strategy.

UPSC Mains Optional Subjects Syllabus — All 48 & How to Choose

Every candidate picks one optional subject with two papers of 250 marks each (500 marks total). The upsc mains optional subjects syllabus is subject-specific and published in full in the notification. There are 48 optional subjects: 25 core disciplines plus 23 literature options.

Category	Optional Subjects
Arts & Humanities	History, Geography, Political Science & IR (PSIR), Sociology, Philosophy, Psychology, Public Administration, Anthropology
Sciences	Physics, Chemistry, Mathematics, Statistics, Botany, Zoology, Geology
Commerce & Others	Economics, Commerce & Accountancy, Management, Law, Medical Science, Agriculture, Animal Husbandry & Veterinary Science
Engineering	Civil, Mechanical, Electrical Engineering
Literature (23 languages)	Literature of any one language including Hindi, English, Sanskrit, Urdu, Tamil, Telugu, Kannada, Malayalam, Bengali, Marathi, Gujarati, Punjabi, and more

A simple framework to choose your optional

Interest & background: pick a subject you can enjoy for 12–18 months; graduation background helps but is not mandatory.
GS overlap: PSIR, Sociology, Geography and Public Administration overlap heavily with GS, saving time.
Material & guidance availability: ensure quality notes and answer-writing support exist.
Scoring trend & scale: check recent toppers and comfort with the syllabus length.

Once you decide, standardised notes shorten the learning curve — for example the Shubhra Ranjan PSIR Notes for Political Science & International Relations, or subject-specific sets for Sociology, Geography, Economics and Public Administration. For a full comparison, see our dedicated optional-subject guides.

Marks Weightage & Time-Management Summary

Here is a single glanceable view linking each paper to its share of merit marks and a suggested preparation-time emphasis — something top pages rarely put in one place.

Paper	Merit Marks	Share of 1750	Prep Emphasis
Essay	250	14.3%	Regular writing, quote/example bank
GS I	250	14.3%	Static-heavy — NCERT + notes
GS II	250	14.3%	Polity static + governance/IR current affairs
GS III	250	14.3%	Economy + environment + security news
GS IV (Ethics)	250	14.3%	Frameworks + case studies
Optional (2 papers)	500	28.6%	Highest single block — go deep

The optional (28.6%) and Essay + Ethics together (28.6%) are the two swing areas that separate rankers. Allocate time accordingly rather than spreading effort evenly. A useful rule of thumb: give the optional the single largest slice of your weekly timetable, protect a fixed weekly slot for essay and ethics answer-writing, and treat GS as a daily current-affairs-plus-static rhythm.

Static vs Current-Affairs Overlap & Answer Writing

A major reason candidates score well below their knowledge is treating the syllabus as static-only. In reality, GS II and GS III are 40–60% current-affairs-driven, while GS I and GS IV are largely static. The winning method is to read the syllabus like a checklist and tag every news item to a specific sub-topic. A monthly compilation such as the Vision IAS Current Affairs Magazine makes this tagging effortless. Then convert learning into marks through timed practice on a Vision IAS Mains Test Series — writing under time pressure is the single biggest score multiplier at the Mains stage.

Where to Download the Official UPSC Mains Syllabus PDF & Revision Checklist

Yes — you can get the upsc mains syllabus pdf download. The syllabus is published in the annual UPSC Civil Services Examination notification on upsc.gov.in, which you can save as a PDF for free. For a print-ready, single-document version you can annotate and tick off, the GS Score Latest Syllabus Booklet 2026-27 gives the full Prelims + Mains syllabus in one compact booklet — ideal as a wall-chart and a revision tracker.

Use this checklist approach: print the syllabus, break every GS paper into its listed sub-topics, and mark each as “studied / revised / test-attempted.” Aspirants who revise directly against the syllabus (not against a book’s chapter order) consistently cover blind spots that others miss.

Prelims vs Mains Syllabus — Are They the Same?

No. The Prelims syllabus is broad and objective (two papers: GS and CSAT), designed as a screening test whose marks do not count towards the final rank. The Mains syllabus is deeper, descriptive and analytical, and its marks (along with the interview) decide selection. There is subject overlap — history, polity, economy, geography, environment appear in both — but Mains demands opinion, inter-linkage and answer writing rather than fact recall. Prepare an integrated foundation for both, then add Mains-specific depth, ethics and your optional.

Has the UPSC Mains Syllabus Changed for 2026?

The structure of the Mains syllabus — 2 qualifying language papers, Essay, four GS papers and one optional with two papers, for 1750 merit marks — has been stable for over a decade and applies to the 2026 cycle. UPSC has not announced a change to the paper pattern for 2026. Always confirm the exact wording, exempted-language list and optional-subject list against the year’s official notification when it is released, because minor clarifications and eligibility notes can be updated there. Treat any coaching summary, including this one, as a study aid layered on top of that official document.

Common Mistakes Aspirants Make with the Mains Syllabus

Ignoring the qualifying language papers until the last week.
Studying from books without ever reading the official syllabus wording.
Starting the optional and Essay too late.
Reading endless current affairs without tagging them to GS sub-topics.
Not writing enough full-length answers under a 3-hour clock.
Spreading time evenly across papers instead of front-loading the high-weight optional.

Frequently Asked Questions

What is the syllabus for UPSC Mains?

The UPSC Mains syllabus consists of 9 papers — two qualifying language papers (an Indian language and English), the Essay, four General Studies papers (GS I: history, culture, society, geography; GS II: polity, governance, IR; GS III: economy, environment, science-tech, security; GS IV: ethics, integrity, aptitude), and two optional subject papers.

How many papers are there in UPSC Mains and which count for merit?

There are 9 papers in all. Seven count for merit (Essay, GS I–IV and two optional papers = 1750 marks), while the two language papers (Paper A and Paper B) are only qualifying and do not add to the merit total.

Is the UPSC Prelims and Mains syllabus the same?

No. Prelims is objective and acts only as a screening test whose marks do not count for the final rank, while Mains is descriptive and analytical and its marks decide selection. Subjects overlap (history, polity, economy, geography, environment), but Mains needs answer writing, inter-linkage and opinion rather than fact recall.

What is the syllabus of GS Paper 4 (Ethics) in UPSC Mains?

GS Paper 4 covers ethics and human interface, attitude, aptitude and foundational values, emotional intelligence, contributions of moral thinkers, public/civil service values, probity in governance, and case studies. Roughly half the 250 marks come from a case-study section testing applied decision-making.

How many optional subjects are there and how do I choose one?

There are 48 optional subjects (25 core subjects plus 23 literature options), each with two papers worth 500 marks. Choose based on real interest, overlap with the GS syllabus, availability of good material and guidance, and recent scoring trends — not on a friend’s choice.

What are the qualifying papers in UPSC Mains and what are the passing marks?

Paper A (a compulsory Indian language from the Eighth Schedule) and Paper B (English) are the qualifying papers, each of 300 marks. You must score at least 25% (75 marks) in each; otherwise your other papers are not evaluated.

How many total marks is the UPSC Mains exam?

The Mains written exam carries 1750 merit marks (Essay 250, four GS papers 1000, and two optional papers 500). Adding the 275-mark Personality Test (interview) gives a final total of 2025 marks that determine the rank; the two language papers are qualifying and add nothing to this total.

Can I download the UPSC Mains syllabus PDF?

Yes. The syllabus is part of the annual UPSC Civil Services Examination notification on upsc.gov.in, which you can save as a PDF for free. For a print-ready, single-document copy to annotate and revise from, you can also use a consolidated syllabus booklet that combines the Prelims and Mains syllabus.