UPSC IAS Syllabus 2021PDF- Prelims/Mains Paper Pattern

UPSC IAS Syllabus

Union Public Service Commission (UPSC) will soon conduct the IAS Civil Services examination; candidates who are going to appear in the said examination are advised to check IAS Syllabus for preliminary and mains examination form this page. IAS exam has three stages that are Prelims, Mains and Interview. The syllabus and exam pattern of all the three stages are different from one another.

Download UPSC IAS Syllabus

The complete UPSC IAS syllabus and exam pattern are available on this page. The syllabus contains all the topics of examination from which the question will be prepared. Candidates are advised to make their study plan as per the syllabus. To check UPSC IAS Syllabus Civil Services Prelims/Mains and New Exam Pattern please scroll down the page of

UPSC IAS Syllabus For Prelims & Mains Exam Details

Organization Name Union Public Service Commission (UPSC)
Exam Name IAS Civil Services
Page Category   Syllabus and admit card
Status Available

UPSC IAS Civil Services Exam Pattern

IAS Civil Services (Preliminary) Exam Pattern:

No. of Papers Two (2) compulsory papers
Type of Questions Objective (MCQs)
Total Marks 200 marks each (400 marks)
Duration of Exam 2 hrs. each (20 minutes extra for a candidate with Locomotor Disability & Cerebral Palsy)
Negative Marking Yes, one-third (0.33) as a penalty
Medium of Exam Bilingual (Hindi and English)

UPSC IAS Civil Services Mains Exam Pattern:

Paper Subject Marks
Paper 1 Essay writing 250
Paper 2 General Studies I Indian Heritage and Culture, History and Geography of the World and Society 250
Paper 3 General Studies II Governance, Constitution, Polity, Social Justice and International relations 250
Paper 4 General Studies III Technology, Economic Development, Bio‐diversity, Environment, Security and Disaster Management 250
Paper 5 General Studies IV Ethics, Integrity, and Aptitude 250
Paper 6 Optional Subject – Paper 1 250
Paper 7 Optional Subject – Paper 2 250
Personal Interview 275
Grand Total 2025

UPSC IAS Syllabus 

IAS Prelims Exam Syllabus: 

IAS Syllabus for Paper 1
Current events of national and international importance History of India and Indian National Movement
Indian Polity and Governance Constitution, Political System, Panchayati Raj, Public Policy, and Rights Issues Economic and Social Development‐Sustainable Development, Poverty, Inclusion, Demographics, Social Sector Initiatives and General issues on Environmental ecology
General Science Indian and World Geography-Physical, Social, Economic Geography of India and the World
Biodiversity and Climate Change ‐ that do not require subject specialization and General Science (-)
IAS Syllabus for Paper 2
Comprehension Logical reasoning and analytical ability
Decision-making and problem-solving General mental ability
Basic numeracy (numbers and their relations, orders of magnitude, etc.) (Class X level) Data interpretation (charts, graphs, tables, data sufficiency etc. – Class X level)

IAS Mains Exam Syllabus: 

Sl. No. Name of Papers Syllabus Marks
1 Essay Paper Any Topic/Topics (Current issues) 250
2 GS Paper I Indian Heritage and
Culture, Indian History, World History, World Geography, Indian Society, Important Geo-physical phenomena
3 GS Paper II Governance, Indian Constitution, Polity, Social Justice and
International relations, Welfare Schemes, Statutory, regulatory and quasi-judicial bodies, Role of civil services in a democracy, India’s relation with neighbour countries, International institutions,
4 GS Paper III Technology,
Economic Development, Bio diversity,
Indian Economy and its various sectors Government Budgeting Land Reforms Inclusive Growth Security and Disaster Management
5 GS Paper IV Ethics and Human Interface Attitude Aptitude Emotional Intelligence Emotional Intelligence Public/Civil service value Probity in Governance Case study on above topics 250
Indian Language Paper
(i) Comprehension of given passages
(ii) Précis Writing
(iii) Usage and Vocabulary
(iv) Short Essays
(v) Translation from English to the Indian
language and vice-versa  
7 English
Comprehension of given passages
Précis Writing
Usage and Vocabulary
Short Essays  
8 Optional Paper I As opted by Candidate 250
9 Optional Paper II As opted by Candidate 250


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