UPSC Mains Syllabus 2026

The UPSC Mains syllabus 2026 forms the foundation of preparation for candidates appearing in the Civil Services Examination. While the Preliminary exam works as a screening test, the Mains examination determines the final merit ranking along with the personality test.

Understanding the syllabus carefully helps candidates organise their study plan, interlink current affairs with static subjects, and improve answer-writing quality.

This page gives you the complete UPSC CSE Mains syllabus 2026, including General Studies papers, Essay paper, qualifying language papers, and optional subjects.

UPSC Mains Exam Pattern 2026

The UPSC Civil Services Mains examination includes nine descriptive papers, of which seven papers are counted for merit, while 2 are only qualifying in nature.

Structure of UPSC Mains Examination

Marks from Essay, General Studies, and Optional papers are included in the final ranking, while marks of qualifying papers are not included in the final merit; you just have to qualify for them.

UPSC Mains GS Paper 1 Syllabus 2026

The UPSC Mains GS 1 syllabus covers Indian culture, history, geography, and society.

Paper-II: General Studies-I: Indian Heritage and Culture, History and Geography of the World and Society.

• Indian culture will cover the salient aspects of Art Forms, literature and Architecture from ancient to modern times.
• Modern Indian history from about the middle of the eighteenth century until the present- significant events, personalities, issues.
• The Freedom Struggle — its various stages and important contributors/contributions from different parts of the country.
• Post-independence consolidation and reorganization within the country.
• History of the world will include events from 18th century such as industrial revolution, world wars, redrawal of national boundaries, colonization, decolonization, political philosophies like communism, capitalism, socialism etc.— their forms and effect on the society.
• Salient features of Indian Society, Diversity of India.
• Role of women and women’s organization, population and associated issues, poverty and developmental issues, urbanization, their problems and their remedies.
• Effects of globalization on Indian society.
• Social empowerment, communalism, regionalism & secularism.
• Salient features of world’s physical geography.
• Distribution of key natural resources across the world (including South Asia and the Indian sub-continent); factors responsible for the location of primary, secondary, and tertiary sector industries in various parts of the world (including India).
• Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc., geographical features and their location-changes in critical geographical features (including water-bodies and ice-caps) and in flora and fauna and the effects of such changes.

Indian History
Geography

UPSC Mains GS Paper 2 Syllabus 2026

The UPSC Mains GS 2 syllabus focuses on governance, the Constitution, social justice, and international relations.

Paper-III: General Studies- II: Governance, Constitution, Polity, Social Justice and International Relations.

• Indian Constitution—historical underpinnings, evolution, features, amendments, significant provisions and basic structure.
• Functions and responsibilities of the Union and the States, issues and challenges pertaining to the federal structure, devolution of powers and finances up to local levels and challenges therein.
• Separation of powers between various 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 & privileges and issues arising out of these.
• Structure, organization and functioning of the Executive and the Judiciary—Ministries and Departments of the Government; pressure groups and formal/informal associations and their role in the Polity.
• 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 of the population by the Centre and States and the performance of these schemes; mechanisms, laws, institutions and Bodies constituted for the protection and betterment of these vulnerable sections.
• Issues relating to development and management of Social Sector/Services relating to 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 & accountability and institutional and other measures.
• Role of civil services in a democracy.
• India and its neighborhood- 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, Indian diaspora.
• Important International institutions, agencies and fora - their structure, mandate.

Polity

UPSC Mains GS Paper 3 Syllabus 2026

The UPSC Mains GS 3 syllabus includes economy, environment, science and technology, disaster management, and internal security.

Paper-IV: General Studies-III: Technology, Economic Development, Bio diversity, Environment, Security and Disaster Management

• Indian Economy and issues relating to planning, mobilization, 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 liberalization 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; indigenization 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 organized crime with terrorism.
• Various Security forces and agencies and their mandate.

Mrunal Sir Economy

UPSC Mains GS Paper 4 Syllabus 2026 (Ethics)

The UPSC Mains Ethics syllabus tests candidates’ moral reasoning and administrative values.

This paper will include questions to test the candidates’ attitude and approach to issues relating to integrity, probity in public life and his problem solving approach to various issues and conflicts faced by him in dealing with society. Questions may utilise the case study approach to determine these aspects. The following broad areas will be covered. The following broad areas will be covered:

• 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 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, Utilization of public funds, challenges of corruption.
• Case Studies on above issues.

UPSC Essay Paper Syllabus 2026

The Essay paper tests clarity of thought and structured presentation. Candidates are required to write two essays from different sections.

Essay themes generally relate to:

• social change
• governance issues
• economic development
• philosophical reflections
• science and technology

Balanced arguments and clarity of expression are essential in this paper.

UPSC Optional Subject Syllabus 2026

Candidates must select one optional subject for the Mains examination. Each optional includes two papers of 250 marks each.

Popular optional subjects include:

• Political Science and International Relations
• Geography
• Sociology
• History
• Anthropology
• Public Administration

A strong optional subject can significantly improve final ranking.

You can see the full optional subject list here: Official UPSC PDF 2026

Qualifying Language Papers in UPSC Mains 2026

Paper A (Indian Language) and Paper B (English) are qualifying papers.

Their marks are not counted in the merit list, but minimum qualifying marks are required. And the minimum qualifying marks are 25% of the total marks. That is 25% of 300 marks, which is 75 marks

These papers usually include:

• Comprehension Passages
• Precis Writing
• Translation
• Short Essays

UPSC Prelims and Mains Syllabus: Major Difference

The Preliminary examination actually tests your understanding and knowledge through objective questions. The UPSC syllabus for Mains shows you that the Mains examination wants to evaluate your analytical ability, interpretation, and writing skills through descriptive answers.

These answers have to be written within an assigned word limit.

Though Prelims allow entry into the second stage, Mains determines the final selection. Hence, it is the Mains which decides your selection, rank and service.

Prelims Syllabus

UPSC Mains Syllabus 2026 PDF Download

Candidates preparing seriously should always keep a printed copy of the UPSC Mains syllabus PDF. Either in digital or printed form, the syllabus should be accessible to you.

It helps in:

• organising notes topic-wise
• Interlinking current affairs with syllabus themes
• tracking preparation progress
• avoiding unnecessary study material

Both the English and UPSC Mains syllabus in Hindi versions are available in the official examination notification.

UPSC Preparation Strategy by Top Educators

How to Cover the UPSC Mains Syllabus 2026 Effectively

Preparation becomes more structured when the syllabus is used as a daily reference rather than just a checklist. Hence, you should study the syllabus thoroughly not just once.

You can take help from these steps:

• Dividing GS papers into smaller targets
• Interlinking newspapers with syllabus headings
• Practising answer writing regularly
• Revising the previous year's questions
• Preparing examples from government reports

Candidates who consistently refer to the syllabus usually revise more efficiently and write better answers.

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