UPSC Civil Services Examination 2026: Complete Syllabus & Exam Pattern

The Civil Services Examination (CSE) is administered annually by the Union Public Service Commission (UPSC) to recruit officers into elite services such as the Indian Administrative Service (IAS), Indian Foreign Service (IFS), and Indian Police Service (IPS), alongside other All India Services and Central Civil Services (Group A and B). Aspiring candidates must clear a rigorous three-tier evaluation process comprising the Preliminary Examination, the Main Examination, and the Personality Test (Interview).

For candidates tracking their progress or preparing for upcoming cycles, checking resources like the UPSC Prelims Result 2026 Out - Click Here to Check is essential. Additionally, candidates can download official notifications and detailed guides directly via resources such as Download UPSC Prelims Syllabus 2026 PDF and Download UPSC Mains Syllabus 2026 PDF.

Overview of the UPSC Exam Structure

The entire roadmap involves transitioning from objective screening to descriptive writing and a comprehensive viva voce. Below is a structural comparison of the exam layout:

Stage 1: UPSC Preliminary Examination Pattern & Syllabus

The Prelims serve as a screening test consisting of two objective papers. Marks secured here do not factor into the final merit list.

UPSC Prelims GS Paper 1 Syllabus Topics

• Current Affairs (Events) of national and international importance
• History of India and Indian National Movement
• Indian and World Geography-Physical, Social, and Economic Geography of India and the World
• Indian Polity and Governance – Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues, etc.
• Economic and Social Development – Sustainable Development, Poverty, Inclusion, Demographics, Social Sector Initiatives, etc.
• General issues on Environmental Ecology, Biodiversity and Climate Change
• General Science

UPSC IAS Prelims CSAT Syllabus Topics

• Comprehension
• Interpersonal skills including communication skills
• Logical reasoning and analytical ability
• Decision-making and problem-solving
• General mental ability
• Basic numeracy (Class X level)
• Data interpretation (charts, graphs, tables, data sufficiency etc. – Class X level)

Important Points on UPSC Prelims Marking Scheme

• For every incorrect answer, 1/3rd mark of the total mark will be deducted.
• For the blank answers, no marks will be deducted.
• In General Studies (Paper I), each question is of 2 marks and negative marking is 0.66 marks.
• In CSAT (Paper-II), each question is of 2.5 marks and negative marking is 0.833 marks for each wrong answer.
• The prelims marks will not be included in the final result (merit list).
• Paper II of the Civil Services (Preliminary) Examination is a qualifying paper with minimum qualifying marks fixed at 33%.

Stage 2: UPSC Mains Examination Structure

The Mains written examination comprises nine descriptive papers. Candidates must take two qualifying papers and seven scoring papers.

UPSC Mains Language Papers Pattern

• Essay – 100 marks
• Reading comprehension – 60 marks
• Precis Writing – 60 marks
• Translation: (a) English to compulsory language (e.g. Hindi) – 20 marks, (b) Compulsory language to English – 20 marks
• Grammar and basic language usage – 40 marks

Important Points on UPSC Mains Exam

• There are two qualifying papers in the mains exam, Namely 'Paper A' and 'Paper B' of 300 marks each.
• Two Qualifying Papers are 'Any Indian Language from Eight Schedule' and 'English Language Paper'.
• Candidates need to score 25% in both qualifying papers i.e, 75 marks each.
• All other seven papers are scoring in nature and their marks will be included in the final merit list.
• Candidates can answer all scoring subjects in English or any of the eight scheduled languages.
• Candidates have to select any one subject from the table as their Optional subject for Paper VI and Paper VII.

UPSC Mains GS Syllabus Topics

GS 1 Syllabus Topics

• Indian culture covers the salient features of Literature, Art Forms, and Architecture from ancient to modern times.
• Modern Indian history include the significant events, personalities, issues during the middle of the eighteenth century until the present.
• Various stages and important contributors and contributions from different parts of the country in 'The Freedom Struggle'.
• Post-independence consolidation and reorganization within the country.
• History of the world includes events, forms and effects on the society from the 18th century like world wars, industrial revolution, colonization, decolonization, political philosophies.
• Salient aspects of Diversity of India and Indian Society
• Role of women and women's organization, population and associated issues, poverty and developmental issues, urbanization, problems and remedies
• Social empowerment, communalism, regionalism & secularism
• Distribution of key natural resources across the world including South Asia and the Indian sub-continent; factors responsible for location of primary, secondary, and tertiary sector industries
• Effects of globalization on Indian society
• Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc., geographical features and their location
• Salient features of world's physical geography.

GS 2 Syllabus Topics

• 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 federal structure, devolution of powers and finances
• Comparison of Indian constitutional scheme with that of other countries
• Separation of powers between various organs dispute redressal mechanisms and institutions
• Parliament and State Legislatures – structure, functioning, conduct of business, powers & privileges
• Appointment to various Constitutional posts, powers, functions and responsibilities of Constitutional Bodies
• Structure, organization and functioning of the Executive and the Judiciary Ministries and Departments; pressure groups and formal/informal associations
• Salient features of Representation of People's Act
• Government policies and interventions for development in various sectors and issues arising out of design and implementation
• Statutory, regulatory and various quasi-judicial bodies
• Welfare schemes for vulnerable sections by Centre and States and performance of these schemes
• Development processes and development industry the role of NGOs, SHGs, various groups and associations, donors, charities
• Issues relating to development and management of Social Sector/Services relating to Health, Education, Human Resources
• Important aspects of governance, transparency and accountability, e-governance, citizens charters
• Issues relating to poverty and hunger
• Role of civil services in a democracy
• Bilateral, regional and global groupings and agreements involving India and/or affecting India's interests
• India and its neighborhood- relations
• Important International institutions, agencies and fora, structure, mandate
• Effect of policies and politics of developed and developing countries on India's interests, Indian diaspora

GS 3 Syllabus Topics

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

GS 4 Syllabus Topics

• 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 lives and teachings of great leaders, reformers and administrators; role of family, society and educational institutions
• Attitude- content, structure, function; 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
• Emotional intelligence concepts, 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; accountability and ethical governance; corporate governance
• Probity in Governance- Concept of public service; Philosophical basis; Information sharing and transparency, RTI, Codes of Ethics, Codes of Conduct, Citizen's Charters, Work culture, corruption challenges
• Case Studies on the above issues.

Optional Subjects and Language Papers

Candidates can choose one optional subject consisting of two papers (Paper VI and Paper VII) from the available list of academic disciplines or literature options.

UPSC Optional Subjects List for Mains Exam

Detailed optional syllabi can be further reviewed via specialized links such as the UPSC Optional Subjects List, Anthropology, Economics, Geography, and Sociology. You can also download subject-specific PDFs like the UPSC Agriculture Syllabus and UPSC Animal Husbandary Syllabus.

Languages and Scripts

Stage 3: Personality Test (Interview)

Candidates who qualify the Mains written test are invited for the Personality Test, which carries 275 marks. Combined with the 1750 marks from the written exam, the final merit list is determined out of a grand total of 2025 marks.