Complete UPSC CSE Syllabus 2026 (Official) – Prelims, Mains & Interview
Complete UPSC CSE Syllabus 2026 (Official) – Prelims, Mains & Interview
The UPSC Civil Services Examination (CSE) is one of the most prestigious competitive exams in India conducted by the Union Public Service Commission for recruitment to services like Indian Administrative Service, Indian Police Service and Indian Foreign Service.
Understanding the official UPSC syllabus is the first and most important step for every aspirant preparing for the exam.
The examination consists of three stages:
✓ Preliminary Examination (Prelims)
✓ Main Examination (Mains)
✓ Personality Test (Interview)
The final ranking is based on Mains + Interview marks only.
1. UPSC Preliminary Examination Syllabus
The Preliminary Examination is the first stage of the UPSC Civil Services Exam.
Exam Pattern
✓ Two papers (Objective type)
✓ Each paper – 200 marks
✓ Duration – 2 hours each
✓ Negative marking applicable
✓ CSAT paper requires 33% minimum qualifying marks
Marks obtained in prelims are not counted for final ranking.
Paper I – General Studies (GS)
The syllabus includes:
✓ Current events of national and international importance
✓ History of India and the Indian National Movement
✓ Indian and World Geography – Physical, Social, Economic Geography
✓ Indian Polity and Governance – Constitution, Political System, Panchayati Raj, Public Policy
✓ Economic and Social Development – Sustainable Development, Poverty, Demographics, Social Sector initiatives
✓ Environmental Ecology, Biodiversity and Climate Change
✓ General Science
Paper II – CSAT (Civil Services Aptitude Test)
Topics include:
✓ Comprehension
✓ Interpersonal and communication skills
✓ Logical reasoning and analytical ability
✓ Decision-making and problem solving
✓ General mental ability
✓ Basic numeracy (Class X level mathematics)
✓ Data interpretation (charts, graphs, tables)
Note:
✓ This paper is qualifying only (33% minimum required).
2. UPSC Main Examination Syllabus
Candidates who qualify the prelims appear for the Main Examination, which is a written exam.
Structure of UPSC Mains
The exam consists of 9 papers, out of which 7 papers are counted for merit ranking.
Qualifying Papers
✓ Paper A – Indian Language (300 marks)
✓ Paper B – English (300 marks)
Candidates must only qualify these papers.
Papers Counted for Merit
Paper I – Essay (250 Marks)
Candidates must write essays on multiple topics such as:
✓ Social issues
✓ Political themes
✓ Economic development
✓ Philosophical topics
General Studies Paper I (250 Marks)
Topics include:
✓ Indian culture and heritage
✓ Ancient, Medieval and Modern Indian history
✓ Freedom struggle
✓ World history
✓ Indian society and diversity
✓ Role of women and population issues
✓ Geography of India and the world
General Studies Paper II (250 Marks)
Covers governance and polity topics:
✓ Parliament and State Legislatures
✓ Judiciary and constitutional bodies
✓ Governance and public administration
✓ Welfare schemes
✓ Social justice
✓ International relations
General Studies Paper III (250 Marks)
Focuses on economy, science and security:
✓ Indian economy and development
✓ Agriculture
✓ Science and technology
✓ Environment and biodiversity
✓ Disaster management
✓ Internal security
General Studies Paper IV (250 Marks)
✓ Ethics and human values
✓ Emotional intelligence
✓ Attitude and aptitude
✓ Public service values
✓ Case studies on ethical dilemmas
Optional Subject Papers
Candidates must choose one optional subject.
✓ Optional Paper I – 250 marks
✓ Optional Paper II – 250 marks
Examples of optional subjects:
✓ Anthropology
✓ Geography
✓ Political Science
✓ Sociology
✓ Public Administration
✓ History
✓ Literature subjects
3. UPSC Personality Test (Interview)
Candidates who qualify the mains appear for the Personality Test.
Interview Details
✓ Marks – 275
✓ Conducted by UPSC board
✓ Focus on personality, not knowledge
Evaluation areas include:
✓ Mental alertness
✓ Critical thinking ability
✓ Leadership qualities
✓ Social awareness
✓ Integrity and moral values
UPSC CSE Total Marks Structure
Stage
Marks
Mains Written Exam
1750
Interview
275
Total
2025
The final merit list is prepared based on Mains + Interview marks.
UPSC Success
Key Points About UPSC Syllabus
✓ UPSC syllabus is conceptual and analytical
✓ Focus on interdisciplinary understanding
✓ Current affairs play a major role
✓ Optional subject is important for scoring
✓ Answer writing practice is crucial for Mains
The UPSC CSE syllabus is vast but well structured. Aspirants who clearly understand the official syllabus and exam pattern can prepare strategically and improve their chances of success.
Before starting preparation, always read the official UPSC notification and syllabus carefully to avoid studying unnecessary topics.
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