UPSC Mains
The Main Examination is the second and most crucial stage of the UPSC Civil Services Examination.
This written examination tests your in-depth knowledge, analytical abilities, and writing skills across multiple subjects. Success in Mains requires not just knowledge acquisition but mastery of effective answer presentation.

Mains Specific Updates 🔔
Mains Result (CSM 2023) has been declared.
Basics
Pre Vs Mains? Whats difference?
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UPSC Mains Syllabus
Linkages between Mains Syllabus
UPSC Mains PYQs
UPSC Mains Booklist
General Studies(GS) 1
Indian Heritage and Culture, History and Geography of the World and Society.
Art and Culture from Ancient to Modern Times
Indian culture will cover the salient aspects of Art Forms, literature and Architecture from ancient to modern times.
Modern History
- 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
Post-independence consolidation and reorganization within the country.
World History
- History of the world will include events from the 18th century such as industrial revolution, world wars, redrawal of national boundaries, colonisation, decolonization, political philosophies like communism, capitalism, socialism etc.— their forms and effect on the society.
Indian Society
- 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 their remedies.
- Effects of globalisation on Indian society.
- Social empowerment, communalism, regionalism & secularism.
Geography
- Salient features of the 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, cyclones 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.
General Studies(GS) 2
Governance, Constitution, Polity, Social Justice and International relations.
Indian Constitution & Polity
- 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, organisation 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.
Social Justice
- Issues relating to development and management of Social Sector/Services relating to Health, Education, Human Resources.
- Issues relating to poverty and hunger.
Government Schemes
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.
Governance
- 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.
- 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.
International Relations
- 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, Indian diaspora.
- Important International institutions, agencies and fora- their structure, mandate.
General Studies (GS) 3
Technology, Economic Development, Biodiversity, Environment, Security and Disaster Management
Economic Development
- Indian Economy and issues relating to planning, mobilisation, of resources, growth, development and employment.
- Inclusive growth and issues arising from it.
- Government Budgeting.
- 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.
Agriculture
- 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.
Science and Technology
- 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.
Environment
Conservation, environmental pollution and degradation, environmental impact assessment.
Disaster Management
Disaster and disaster management.
Security
- 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 (GS) 4
Ethics, Integrity & Aptitude
- 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 above issues.
UPSC Optional Subjects
You can choose any optional subject for UPSC Mains Exam. The list of Optional Subjects is as follows.
Optional Subjects
Literature Optional
UPSC Mains Value-Addition Material
Data and Facts
- Support arguments with statistical data
- Include relevant indices, rankings, and reports
- Quote experts and authoritative sources
Current Affairs
- Link theoretical concepts with recent events
- Cite relevant government initiatives and programs
- Include latest committee reports and recommendations
Multi-dimensional Approach
- Cover political, economic, social, technological aspects
- Include ethical, environmental, and legal dimensions
- Present both advantages and limitations
Diagrams & Flowchart
Draw simple diagrams where applicable
Use flowcharts for processes and relationships
Include mind maps for complex concepts
UPSC Mains Exam
FAQs
What type of UPSC Mains Exam question paper?
The question papers for the examination will be of conventional (essay) type.
How much time is allotted for Mains Paper?
Each paper will be of three hours duration.
Can I write answers to all questions in compulsory/qualifying language papers?
Yes, candidates will have the option to answer all the question papers, except the Qualifying Language Papers, Paper-A and Paper-B, in any one of the languages included in the 8th Schedule to the Constitution of India or in English.
Can I write Optional Paper in English if I opted for writing GS Paper in regional language?
Notwithstanding this, the Candidate will have the choice to write the Optional Papers in English also if candidates opt to write Paper I-V except the Qualifying Language Papers, Paper-A and Paper-B, in any one of the languages included in the Eighth Schedule to the Constitution of India.
I choose to write GS Paper in regional language, can I write in English in main paper?
No. If you do so then the Commission might not evaluate your copy citing an unauthorised medium.
Candidates exercising the option to answer Papers in any one of the languages included in the Eighth Schedule to the Constitution of India mentioned above may, if they so desire, give English version within brackets of only the description of the technical terms, if any, in addition to the version in the language opted by them.
Candidates should, however, note that if they misuse the above rule, a deduction will be made on this account from the total marks otherwise accruing to them and in extreme cases; their script(s) will not be valued for being in an unauthorised medium.
Is there any penalty/negative marking in UPSC Mains exam?
As such no, but if the evaluator finds any irrelevant matter/signages/marks etc. found written in the answer scripts, which would be having the potential to disclose the candidate’s identity, then the Commission will impose a penalty of deduction of marks from the total marks or will not evaluate the said scripts on this account.
What is the language of the question paper in the mains exam?
Other than the literature of language papers, the question papers will be set in Hindi and English only.
Post-Mains Strategy
If you’re confident of qualifying Mains Exam, you can take bit break and begin Interview DAF preparation.
