The UPSC prelims syllabus and Subject mentioned and their weightage of marks in General Studies paper is Observed as follows. Understanding Subject wise weightage can make your preparation more targeted and effective strategy will give you clarity on the each subject. It will enreach to crack the prelimary at the forst attempt
| UPSC Subject wise weightage in UPSC Prelims 2026 | |||
| SNO | Subject | Approximent weightage(%) (based on the last five years PYQ's) | |
|---|---|---|---|
| 1 | History | 18 - 20 % | |
| 2 | Indian Polity | 15 - 20 % | |
| 3 | Economy | 12 - 15 % | |
| 4 | Geography | 10 - 12 % | |
| 5 | Envinorment and Ecology | 15 - 18 % | |
| 6 | Science and Technology | 4 - 6 % | |
| 7 | Current Affairs - National & International | 25 - 40 % | |
The UPSC gives significant importance to History subject , covering ancient, medieval, modern and cultural heritage of the country since ancient to modern times as mentioned in the syllabus segment.Apart from that the candidate has to concentrate on the following aeras :
Pre Historic culture, IVC and Vedic Culture
Janapadas, Maha Janapadas, Mauryan dynasty , Gurthas, later Gurthas and Sangam age / South Indan History
Art, Architecture, Literature, Dance Forms, Sculpture, and Modern Art Forms, Ancient Education, Philosophy, Social Order of Ancient India
Muslim Invasions
Delhi Sultanate, Mughals, Vijayanagara Empire, and South India
Bhakti and Sufi Movements
Socio, Economic, Cultural Developments, and Administrative Systems
Arrival of the Europeans
East India Company and Establishment
British Administration and Economic Policies
Civil Uprisings, 1857 Revolt
Socio-Cultural, Educational, and Religious Reform Movements
Indian National Movementse- Moderats and Extreemists
Gandhian Era
Contributions of Gandhi, Rabindranath Tagore, Humanists ,Nehru, Subhas Chandra Bose, Bhagat Singh, Ambedkar, and Phule
Constitutional Developments
Post Independent Developments
Post Independent Developments
Indian Polity is the most curical segment along with current political Developments as mentioned and gives high weightage in Prelims:
Current Developments over the last two years on Indian polity, administration schemes, acts, and other initiatives of Union, State, and local governments in India
Current issues in government, transparency, and accountability
RTI Acts - 20 Years Experience
Judicial reforms and landmark judgments of the Supreme Court and High Court in india
Public policy implementation and welfare schemes
The MCQ's on Economy range from basic concepts to current Economic Developments including Economic survey and Budgetary allocations.
The UPSC is concentrating on Current Economic Developments both at National and International and regional Developments such as Sustainable Development Goals , last 10 years government schemes, Balance of payments, Foreign exchange issues, Investments including sanctions imposed by foreign nations
Social Sector issues and Inculsive
Inculsive Growth and Economic Reforms and NITI Aayog- Its 10 Years Experience
Indirect Tax Reforms-GST 1.0 and 2.0 and its impact on Indian Economy
The MCQ's on Geography offen combine physical and social , Economy and Envinormental segments of the Indian and world Geography as mentioned in the Syllabus.
The MCQ's on this Segment will range form basic concepts to current Developments Issues Government Policies and Envinormental Acts passed by the parlanent abd World Countries
Ecology and Ecosystems
Food Chain Process
Biodiversity Hotspots Conservation Effects
Climate Change, Emissions, and Recent Decisions in India and the World
Conflicts of Party History, Evolution, and Recent Developments
Environmental Governance in India
Forests and Their Importance
Renewable Energy, Waste Management Acts, and India's Efforts
This Segment is a mix of NCERT basics and Current Developments and its Applications on the relavent Subjects
Energy, Motion, Electricity, and Nuclear Science
Periodic Table, Acids, and Bases
Atomic Structure, Polymers,Acids and Bases and the Role and Use of Chemistry in Everyday Life
Taxonomy
Plant Physiology
Human Physiology
Biotechnology and Genetics
The Core Section on Space Technology
Defence Technology
Health and Medicine- Diseases & Nutrition
Information Technology
Biotechnology - Genetics and Genetic Engineering
Cryogenics
Last One Decade's R&D in Science and Technologies
Current Events of National and International Affairs are the most Weightage Segment in the Prelims Exam. The MCQ's on this dynamic part are offen linked with National Governance and International relations with refernce to UNO, Multi-lateral and BI-lateral relations between and among the nations.
The Core Aeras are
Government Schemes, Important Flagship Programs, and Welfare Schemes
Important Acts Passed by the Parliament and State Legislatures
Important Commission,Reports and Decisions of the Government at Union and State Level
Important Judicial Judgments
Social, Economic, Environmental, Cultural, and Administrative Decisions of the Union and States
International Organizations - UN), SAARC, ASEAN, G7, G20, NAM, BRICS, BIMSTEC and other International Economic Organizations like - World Bank, IFM,ADB and etc...
Major Global Issues like Conflicts, Committes,Climate Initiatives,Treaties and International Tariffs and Sanctions
Awards and Honors at Global level
Sports and Games Events Medals
S & T in Current Affairs both at National and International Level
| SNO | Subject | Suggested Book Name, NEWS Papers and Webistes |
|---|---|---|
| 1 | History |
1) NCERT's (Ancient, Medieval, and Modern India) 2) Indiaβs Struggle for Freedom by Bipin Chandra or Spectrumβs Modern India by Rajiv Ahir 3) [Add any additional book suggestion here] |
| 2 | Indian Polity |
1) NCERT (9th to 12th Class) 2) Indian Polity by M. Laxmikanth 3) Reference Book: Introduction to the Constitution of India |
| 3 | Economy |
1) NCERT (9th to 12th Class) 2) Indian Economy by Ramesh Singh 3) Economic Survey and Budget Documents |
| 4 | Geography |
1) NCERT (6th to 12th Class) 2) World and India Geography by Majid Hussain 3) Certificate Physical and Human Geography by J. C. Leong 4) Standard Atlas |
| 5 | Envinorment and Ecology |
1) CBSE (10th to 12th) Environment Book 2) Sankar IAS |
| 6 | Science and Technology |
1) NCERT (9th to 10th Class Physics, Chemistry and Biology) 2) S & T Current Affairs |
| 7 | Current Affairs - National & International |
1) Daily Newspapers - The Hindu, The New Indian Express 2) Magazines - Yojana, Kurukshetra, DTE, and Frontline 3) Government Websites - Rajya Sabha TV, FM Website, MEA Website, PRS Website 4) Monthly Magazine - One Competitive Magazine |
The UPSC CSAT syllabus is divided under the following sections
1) Comprehension
2) Interpersonal Skills
3) Reasoning - and Logical Rasoning
4) Decision Making and Problem Solving
5) General Mental Ability
6) Mathematics and Basic Numaracy
7) Data interpretation
The UPSC Civil Services Aptitude Test (CSAT) is of Qualifing nature required candidates to secure atleast 33% of questions out of 80 questions.Each question carries 2.5 marks with negative marking.In 2014, The UPSC annoucden that CSAT would be a Qualifing paper with 33% of questions effective from 2015. The CSAT Score will not be counted for overall Prelims Ranking
The UPSC assesses the candidate's understanding, analytical skills, and time management to qualify the paper. The syllabus for CSAT is referred to under the Prelims syllabus segment. Over the last 10 years, observations at the distribution of question patterns reveal the following: the major questions are being asked across the three sections of the syllabus - Comprehension, Reasoning, and Basic Mathematics and Numeracy.
1) The candidate has to focus on Reading Comprehension skills to score high marks
2) As Observed over the last 10 years the number of questions on Reasoning segments in CSAT has been decreasing.
3) Regarding Mathematics and Numeracy, the UPSC has emphasized more and increased the number of questions on this part.
The Reading Comprehension section is not just about reading skills only, but it requires more critical thinking and understanding levels of the given passage. The questions on the passage require more understanding of logical references, critical thinking and valid explaination, which are essential to get more marks. The themes of the passages in the section cover more diversed topic including Religious, S&T, Rnvironment, International relations, LAW and Philosophy etc...
The Reasoning section in the paper plays a crucial role in evaluating the candidate's logical and analytical thinking capabilities. This part includes more diverse subjects like Calendar, Clocks, Series, Directions, Coding-Decoding, Blood Relations, as well as Cubes and Dice, and Non-Verbal Reasoning. It assesses the candidate's reasoning proficiency, ranging from basic to complex, and involves critical reasoning to arrive at the answers.
The Mathematics and Numeracy section of the CSAT Paper has emerged as a significant factor in deciding the candidate's score of marks in the segment. The concepts of geometry, mensuration, set theory, and Venn diagrams, data interpretation, time and speed, time and work, pipes and ages, averages, profits and loss accounts, percentages, interest, and ratio, proportion, and mixture allegation are of varying difficulty and range from straightforward solutions to complex problems that require more understanding and practice.
a) The candidates shall meticulously focus on Comprehension, Reasoning, and basic Numeracy.
b) The aspirants shall develop the regular habit of active reading, covering topics of various ranges, leading articles, and op-ed pages of The Hindu, The Indian Express, wire services, and other magazines. The candidates are advised to focus on the Sunday special of newspapers.
c) The candidates are required to have more clarity and understanding of the overuse of derivative words.
d) Time management is very crucial.
a) The Aspirants on advised to concentrate on the basic concepts of Logical Reasoning and Quick Understanding of the given problem.
b) More Accuracy in indentifing the concepts.
The candidates are advised to follow the following steps to master Mathematics and Numeracy.
a) Conceptual clarity on the fundamentals of basic Mathematics.
b) Clear application of all the topics.
c) Focus on regular practice.
d) Focus on data interpretation skills by regularly reading the Economic Survey, different departmental progress sheets, and improving the capability of drawing tables, line graphs, and their interpretation.
e) Develop language command and logical interpretation of a given statement.
To sum up the above analysis, the complexity of the CSAT, suggestions, and preparation strategy emphasize Comprehension, Reasoning, and basic Mathematics and Numeracy as per the trends of the UPSC CSAT Paper. The candidates on plan you strategy accordianly by focusing on core areas of effective time management and regular practice to score more marks in the CSAT.
1) Analytical Reasoning by MK Pandey
2) Tracking the CSAT by Airhanth Publications
3) Verbal and non Verbal Reasoning by RS Agarwal
4) General Mathematics text book- SSC Standards
5) Complusory reading of the Hindu Paper / The Indian Express.