UPSC Mains Syllabus 2026: All 9 Papers, Marks & PDF Download

The UPSC Mains syllabus covers nine descriptive papers written over five to seven days: two qualifying language papers (Paper A and Paper B, 300 marks each), one Essay paper (250), four General Studies papers GS-I to GS-IV (250 marks each), and two Optional Subject papers (250 marks each). Only seven papers count toward the merit list — the two language papers are merely qualifying — giving 1750 written marks, which combine with the 275-mark Personality Test to make a grand total of 2025 marks.

This guide lays out the complete, official topic-wise syllabus for every paper of the UPSC Mains syllabus 2026, the exact exam pattern and marks, the full list of 48 optional subjects, a PYQ-backed weightage view of high-yield themes, answer-writing word limits, the day-wise exam schedule, the medium-of-writing rules, and where to download the official subject-wise PDF — everything an aspirant needs to plan Mains preparation from a single page.

UPSC Mains Syllabus 2026: Quick Overview

The Civil Services (Main) Examination is the second stage of the UPSC CSE, taken only by candidates who clear Prelims. It is a written, descriptive test of an aspirant’s depth of understanding, analytical ability and structured expression — unlike the objective Prelims. The ias mains syllabus subject wise is built around nine papers, but the scoring logic is what trips up most first-timers: two papers only need to be “passed”, and the other seven decide your rank.

Before the topic-wise detail, here is the exam at a glance:

• 9 papers in total, each 3 hours long, in offline pen-and-paper (descriptive) format.
• 7 merit papers (Essay + GS-I to GS-IV + 2 Optional) = 1750 marks.
• 2 qualifying papers (Paper A + Paper B) at 300 each — must clear 25%, not added to merit.
• Interview / Personality Test = 275 marks; final selection out of 2025 marks.
• Conducted over roughly 5–7 days, usually one to two papers per day.

UPSC Mains Exam Pattern and Marks

The upsc mains exam pattern and marks follows a fixed structure notified by the Union Public Service Commission. There are nine papers in total, each carrying three hours of writing time. The two language papers are of matriculation or equivalent standard and are qualifying in nature — your marks in them are not added to the merit total, but you must clear the minimum cut-off to have your other papers evaluated at all.

Do the math and the picture is clear: 250 (Essay) + 1000 (four GS papers) + 500 (two optional papers) = 1750 written merit marks. Add the 275-mark interview and the final selection is decided out of 2025 marks. Your written GS notes and answer practice therefore carry the heaviest weight — a strong, current GS foundation such as the Vision IAS GS 2026-27 booklet set pays back across four of the seven scoring papers.

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

There are nine papers in UPSC Mains. Seven count for the merit ranking (Essay, GS-I to GS-IV, and Optional Paper 1 and 2), while the two language papers (Paper A and Paper B) are only qualifying and do not contribute to your total.

How many days is UPSC Mains held over? Day-wise schedule

UPSC Mains is spread across five separate exam days (often within a week or two), with an Essay day, four GS days and the two optional papers, plus the two language papers. The exact dates change every year, but the typical sequence is:

Because two papers can fall on the same day, six hours of intense writing back-to-back is common — which is exactly why sustained answer-writing stamina, not just knowledge, is what the schedule tests. Always confirm the official date sheet in the annual notification on upsc.gov.in.

Compulsory Language Papers (Paper A & Paper B)

These two papers are the most under-rated part of the upsc mains syllabus — treated as a footnote by most guides, yet every year they knock out otherwise strong candidates whose merit papers are never even opened.

Paper A — Compulsory Indian Language (300 marks): You choose one language from the 22 languages listed in the Eighth Schedule of the Constitution. The paper tests comprehension of given passages, precis writing, usage and vocabulary, short essays, and translation between English and the chosen language. Candidates from Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland and Sikkim are exempted from Paper A.

Paper B — English (300 marks): Matriculation standard — comprehension passages, precis writing, usage and vocabulary, and short essays. The aim is only to check whether you can read and express in English at a basic administrative level.

What is the minimum qualifying marks for the language papers?

The minimum qualifying standard for both Paper A and Paper B is 25% — that is 75 out of 300 in each. Marks obtained above this cut-off are not counted anywhere. If you fail either paper, UPSC does not evaluate your Essay, GS or Optional answer scripts, so a poor language paper can cancel an entire attempt.

Practical tip: attempt the precis and letter/translation sections carefully, manage time (many run short because they under-estimate the paper), and revise basic grammar. A week of targeted practice before Mains is usually enough to clear the 25% line comfortably.

Can I write UPSC Mains in Hindi or a regional language?

Yes. Apart from the two compulsory language papers, you may write the Essay, all four GS papers and your optional in English or in any language listed in the Eighth Schedule of the Constitution — you simply declare your medium in the application form. The medium of a paper is independent of your compulsory Indian language choice, and candidates routinely clear the exam writing entirely in Hindi or a regional language. Literature optionals may be answered in the language concerned (except where UPSC specifies otherwise).

Essay Paper (250 Marks)

The Essay paper requires you to write two essays of about 1000-1200 words each, chosen one from each of two sections (typically four topics per section). Each essay carries 125 marks. Topics range from philosophical and abstract themes to socio-economic, governance and contemporary-issue prompts.

Marks are awarded for the quality of thought, logical structure, balanced argument, relevant examples across disciplines, and clarity of language — not for how many facts you dump. A well-planned essay with a clear introduction, multi-dimensional body (social, economic, political, ethical, environmental angles) and a forward-looking conclusion routinely scores 120+. Building a bank of quotes, examples and structures with a resource like the Vajiram Essay Notes is a low-cost, high-return investment for this 250-mark paper.

General Studies Paper I Syllabus (250 Marks)

GS-I covers Indian Heritage and Culture, History and Geography of the World and Society. It is the most “static” of the four GS papers, which makes it high-yield if revised well. Topic-wise, the official syllabus includes:

• Indian culture — salient aspects of Art Forms, Literature and Architecture from ancient to modern times.
• Modern Indian history from about the middle of the eighteenth century — significant events, personalities, issues.
• The Freedom Struggle — its various stages and important contributors/contributions from different parts of the country.
• Post-independence consolidation and reorganisation within the country.
• History of the world — 18th century events like the Industrial Revolution, world wars, redrawal of national boundaries, colonisation, decolonisation, and political philosophies such as communism, capitalism and socialism.
• Salient features of Indian Society, diversity of India.
• Role of women and women’s organisation, population and associated issues, poverty and developmental issues, urbanisation, their problems and remedies.
• Effects of globalisation on Indian society; social empowerment, communalism, regionalism and secularism.
• Salient features of world’s physical geography; distribution of key natural resources across the world (including South Asia and the Indian subcontinent); factors responsible for location of primary, secondary and tertiary sector industries.
• Important geophysical phenomena such as earthquakes, tsunamis, volcanic activity, cyclones, and geographical features and their changes.

General Studies Paper II Syllabus (250 Marks)

GS-II is the Governance, Constitution, Polity, Social Justice and International Relations paper — the most dynamic in terms of linkage with current affairs. Its official topics are:

• Indian Constitution — historical underpinnings, evolution, features, amendments, significant provisions and basic structure.
• Functions and responsibilities of the Union and the States, issues and challenges of the federal structure, devolution of powers and finances to local levels and challenges therein.
• Separation of powers between organs, dispute redressal mechanisms and institutions.
• Comparison of the Indian constitutional scheme with that of other countries.
• Parliament and State Legislatures — structure, functioning, conduct of business, powers and privileges and issues arising out of these.
• Structure, organisation and functioning of the Executive and the Judiciary; Ministries and Departments; pressure groups and formal/informal associations.
• Salient features of the Representation of People’s Act.
• Appointment to various Constitutional posts, powers, functions and responsibilities of various Constitutional Bodies.
• Statutory, regulatory and various quasi-judicial bodies.
• Government policies and interventions for development in various sectors and issues arising out of their design and implementation.
• Development processes and the development industry — the role of NGOs, SHGs, various groups and associations, donors, charities, institutional and other stakeholders.
• Welfare schemes for vulnerable sections; mechanisms, laws, institutions and bodies constituted for their protection and betterment.
• Issues relating to development and management of Social Sector/Services — Health, Education, Human Resources; issues relating to poverty and hunger.
• Important aspects of governance, transparency and accountability, e-governance applications, models, successes, limitations and potential; citizens charters, transparency and accountability and institutional and other measures.
• Role of civil services in a democracy.
• India and its neighbourhood relations; bilateral, regional and global groupings and agreements involving India and/or affecting India’s interests; effect of policies and politics of developed and developing countries on India’s interests; the Indian diaspora; important international institutions, agencies and fora — their structure and mandate.

General Studies Paper III Syllabus (250 Marks)

GS-III covers Technology, Economic Development, Bio-diversity, Environment, Security and Disaster Management. It is fact-and-current-affairs heavy. Official topics include:

• Indian Economy — issues relating to planning, mobilisation of resources, growth, development and employment.
• Inclusive growth and issues arising from it.
• Government Budgeting.
• Major crops-cropping patterns in various parts of the country, different types of irrigation and irrigation systems; storage, transport and marketing of agricultural produce and issues and related constraints; e-technology in the aid of farmers.
• Issues related to direct and indirect farm subsidies and minimum support prices; Public Distribution System — objectives, functioning, limitations, revamping; issues of buffer stocks and food security; Technology Missions; economics of animal-rearing.
• Food processing and related industries in India — scope and significance, location, upstream and downstream requirements, supply chain management.
• Land reforms in India.
• Effects of liberalisation on the economy, changes in industrial policy and their effects on industrial growth.
• Infrastructure — Energy, Ports, Roads, Airports, Railways etc.
• Investment models.
• Science and Technology — developments and their applications and effects in everyday life; achievements of Indians in science & technology; indigenisation of technology and developing new technology.
• Awareness in the fields of IT, Space, Computers, robotics, nano-technology, bio-technology and issues relating to intellectual property rights.
• Conservation, environmental pollution and degradation, environmental impact assessment.
• Disaster and disaster management.
• Linkages between development and spread of extremism.
• Role of external state and non-state actors in creating challenges to internal security.
• Challenges to internal security through communication networks; role of media and social networking sites in internal security challenges; basics of cyber security; money-laundering and its prevention.
• Security challenges and their management in border areas — linkages of organised crime with terrorism.
• Various Security forces and agencies and their mandate.

General Studies Paper IV Syllabus — Ethics (250 Marks)

GS-IV, the Ethics, Integrity and Aptitude paper, is unique to UPSC and often the biggest score-differentiator. The paper has two parts — a theory section (around 120 marks) and a case-studies section (around 130 marks) where you apply ethical reasoning to real administrative dilemmas. Official syllabus:

• Ethics and Human Interface — essence, determinants and consequences of ethics in human actions; dimensions of ethics; ethics in private and public relationships.
• Human Values — lessons from the lives and teachings of great leaders, reformers and administrators; role of family, society and educational institutions in inculcating values.
• Attitude — content, structure, function; its influence and relation with thought and behaviour; moral and political attitudes; social influence and persuasion.
• Aptitude and foundational values for Civil Service — integrity, impartiality and non-partisanship, objectivity, dedication to public service, empathy, tolerance and compassion towards the weaker sections.
• Emotional intelligence — concepts, and their utilities and application in administration and governance.
• Contributions of moral thinkers and philosophers from India and the world.
• Public/Civil service values and Ethics in Public administration — Status and problems; ethical concerns and dilemmas in government and private institutions; laws, rules, regulations and conscience as sources of ethical guidance; accountability and ethical governance; strengthening of ethical and moral values in governance; ethical issues in international relations and funding; corporate governance.
• Probity in Governance — concept of public service; philosophical basis of governance and probity; information sharing and transparency in government, Right to Information, Codes of Ethics, Codes of Conduct, Citizen’s Charters, Work culture, Quality of service delivery, Utilisation of public funds, challenges of corruption.
• Case Studies on the above issues.

Because half the paper is applied case studies, a structured resource with model frameworks — such as the Drishti IAS Ethics Notes — helps you standardise the introduction–stakeholders–options–decision approach that scorers reward.

What is the syllabus of GS Paper 1, 2, 3 and 4 in UPSC Mains?

In short: GS-I is Indian heritage, culture, history, geography and society; GS-II is polity, constitution, governance, social justice and international relations; GS-III is economy, agriculture, science & technology, environment, disaster management and internal security; and GS-IV is ethics, integrity, aptitude, emotional intelligence and probity in governance with applied case studies.

High-Yield Themes: PYQ-Based Weightage

Top-ranking syllabus pages dump the raw text but rarely tell you where the marks actually cluster. A Previous Year Question analysis of recent GS papers reveals recurring, high-frequency themes worth prioritising in your revision.

Because GS-II and GS-III lean heavily on current affairs, pairing static notes with a monthly current-affairs source and disciplined answer practice is what separates a 100/250 script from a 130/250 one. A dedicated Vision IAS Mains Test Series 2026 forces you to write to the clock across all four GS papers, which is where most of the weightage advantage is actually converted into marks.

UPSC Mains Optional Subjects List (48 Subjects)

Every candidate must choose one optional subject carrying two papers of 250 marks each — a combined 500 marks, nearly a third of the merit total. The upsc mains optional subjects list has 48 options: 25 core subjects plus the literature of 23 languages.

How many optional subjects are there and can I choose any one?

There are 48 optional subjects, and you may choose any one — you are not restricted to your graduation subject. You select both optional papers from the same single subject; you cannot mix two different optionals.

How to choose your optional — a quick decision framework

Optional lists everywhere are just names. Use these four filters to actually decide:

• GS overlap: PSIR overlaps GS-II (polity & IR), Sociology overlaps GS-I (society), Geography overlaps GS-I and GS-III, Public Administration overlaps GS-II. Overlap saves preparation time.
• Scoring trend: Look at recent toppers’ marks and consistency in your shortlisted subject, not one-off outliers.
• Material & guidance availability: Well-supported optionals like PSIR, Sociology, Geography, Public Administration and Anthropology have abundant notes and test series.
• Your background & interest: Genuine interest sustains the 4-5 months an optional demands.

For popular optionals, ready-made topper booklets shorten the curve considerably — for example the Shubhra Ranjan PSIR Notes for Political Science & International Relations aspirants. If you are still undecided, our detailed guide on the best data-backed optional picks can help you finalise before you commit.

Answer-Writing: Word Limits and Marks

Each GS paper has 20 questions for 250 marks, arranged in two mark categories. Understanding the word-limit-to-mark mapping is a practical, exam-day detail the incumbent pages skip.

With roughly 20 questions in three hours, you have about 9 minutes per question including thinking time. That is why writing practice — not just reading — decides Mains. Sticking to the directive word (discuss, examine, critically analyse, comment) and using crisp points, diagrams and a short conclusion earns more than long paragraphs.

UPSC Mains Syllabus PDF Download (English & Hindi)

You can download the official upsc mains syllabus pdf download directly from the Union Public Service Commission website, upsc.gov.in, under the notification for the Civil Services Examination. The official notification carries the complete syllabus for all nine papers in both English and Hindi and is the single authoritative source.

For quick offline revision without a lead-capture form, we have compiled a clean, subject-wise Mains syllabus into a single formatted document you can print and tick off paper by paper. If you prefer a bound, exam-ready copy, the GS Score Latest Syllabus Booklet 2026-27 reproduces the full Prelims and Mains syllabus in a durable printed format.

Where can I download the official UPSC Mains syllabus PDF?

Download it from the official UPSC website (upsc.gov.in) inside the annual Civil Services Examination notification, available in both English and Hindi. Always cross-check any third-party PDF against the official notification, as the notification is the legally valid version.

One-Page Mains Syllabus Checklist

Use this printable checklist to track coverage across every paper. Tick each once you have completed notes, revised, and written at least five practice answers on it.

Common Mistakes Aspirants Make in Mains

• Ignoring the language papers until the last week and risking the 25% cut-off.
• Reading without writing — Mains rewards structured expression, not passive knowledge.
• Choosing an optional by trend rather than fit, then struggling with 500 marks.
• Neglecting GS-IV case studies, which are half the Ethics paper and easily scored with practice.
• Weak current-affairs linkage in GS-II and GS-III, where dynamic content is heavily rewarded.

Fix these and your written total — the 1750 marks that actually decide your rank — moves in the right direction.

Frequently Asked Questions

What is the total marks of UPSC Mains exam?

The UPSC Mains written examination is 1750 merit marks (Essay 250 + four GS papers of 250 each + two optional papers of 250 each). Adding the 275-mark Personality Test, the final selection is out of a grand total of 2025 marks. The two qualifying language papers of 300 marks each are not added to this total.

Are the language papers in UPSC Mains counted in the final merit?

No. Paper A (Compulsory Indian Language) and Paper B (English) are qualifying papers only. You must score at least 25% in each, but the marks are not added to your merit total. If you fail either, your remaining seven papers are not evaluated.

Is the UPSC Mains syllabus the same every year or has it changed for 2026?

The core UPSC Mains syllabus has remained largely unchanged for years and continues the same for 2026. The static topics of GS-I to GS-IV, Essay, language and optional subjects are stable; only the current-affairs dimension of GS-II and GS-III naturally reflects new developments each cycle. Always confirm with the latest official notification on upsc.gov.in.

How many optional subjects are there in UPSC Mains and can I choose any one?

There are 48 optional subjects — 25 core subjects plus the literature of 23 languages. You may choose any one, regardless of your graduation background, and both optional papers must be from that same single subject.

What is the minimum qualifying marks for the Indian Language and English papers?

The minimum qualifying mark is 25% in each — that is 75 out of 300 in Paper A and 75 out of 300 in Paper B. Meeting this cut-off is mandatory for the Commission to evaluate your Essay, GS and Optional scripts.

How many days is the UPSC Mains exam held over?

UPSC Mains is conducted across five exam days, usually spread within a week or two. The typical order is Essay, then GS-I and GS-II, then GS-III and GS-IV, then the two optional papers, and the two compulsory language papers — often with two papers on the same day. Exact dates are announced in the official notification each year.

Which study material covers the full UPSC Mains GS syllabus?

Comprehensive GS booklet sets that span all four papers are the most efficient way to cover the Mains GS syllabus in one place. Combining a full GS notes set with a dedicated Ethics resource, an essay-preparation booklet, and a Mains test series for answer practice covers every merit paper end to end.

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