UPSC CSE Prelims Syllabus: Comprehensive Paper-Wise Guide & Exam Pattern

1. UPSC CSE Prelims Exam Pattern & Architecture

The Civil Services Preliminary Examination consists of two compulsory objective-type papers conducted offline on OMR sheets on the same day in two sessions:

Figure: Official Structure and Core Syllabus of UPSC Civil Services Preliminary Examination

2. Paper-I: General Studies (GS) Complete Syllabus

• Maximum Marks: 200 | Total Questions: 100 | Duration: 2 Hours
• Negative Penalty: -0.66 marks deducted for each incorrect attempt.
• Cutoff Benchmark: Your score in Paper-I alone determines whether you clear the cutoff to write the Mains Examination, provided Paper-II is qualified.

Official Syllabus Breakdown with Micro-Topics:

• 1. Current Events of National and International Importance:
  • Major geopolitical summits (G20, BRICS, SCO, COP climate conferences).
  • Landmark governmental policies, socio-economic welfare schemes, and legislative acts.
  • Bilateral treaties, maritime initiatives, strategic global defense pacts, and international organizations.
  • Significant awards, indices, and national rankings released by NITI Aayog and global bodies.
• 2. History of India and Indian National Movement:
  • Ancient India: Indus Valley Civilization settlements, Vedic literature, rise of Mahajanapadas, Buddhism & Jainism, Mauryan administrative architecture, and the Gupta Empire.
  • Medieval India: Early regional dynasties (Cholas, Pallavas), Delhi Sultanate governance, Vijayanagara Empire, Mughal administrative systems (Mansabdari), and Bhakti-Sufi traditions.
  • Modern India & National Movement: British expansion, 1857 revolt, tribal and peasant uprisings, socio-religious reform movements, early congress phase, Swadeshi movement, Gandhian mass movements, revolutionary activities, and Indian Independence Act 1947.
• 3. Indian and World Geography – Physical, Social, Economic:
  • Physical Geography: Geomorphology (earthquakes, volcanoes, plate tectonics), Climatology (monsoons, cyclones, atmospheric pressure belts), and Oceanography (ocean currents, salinity, coral reefs).
  • Indian Geography: River drainage basins, mountain passes, climate zones, natural vegetation, and soil classification.
  • Economic & Human Geography: Mineral resources distribution, industrial corridors, energy reserves, migration patterns, and agricultural crop belts.
• 4. Indian Polity and Governance – Constitution, Political System, Panchayati Raj:
  • Preamble, Fundamental Rights (Part III), Directive Principles (Part IV), and Fundamental Duties.
  • Union and State Executive (President, Governor, Prime Minister, Chief Minister).
  • Parliament and State Legislatures (legislative procedures, bills, committees, parliamentary privileges).
  • Indian Judiciary (Supreme Court, High Courts, Judicial Review, Public Interest Litigation).
  • Local Self-Government (73rd and 74th Constitutional Amendment Acts, PESA Act).
  • Constitutional and Non-Constitutional Bodies (ECI, UPSC, CAG, Finance Commission, NITI Aayog).
• 5. Economic and Social Development:
  • National Income Accounting (GDP, GNP, NNP, inflation indices – CPI, WPI).
  • Fiscal and Monetary Policy (RBI instruments, Repo, SDF, budget classifications, tax reforms).
  • Banking Sector & Capital Markets (NPAs, IBC, SEBI regulations, stock and bond markets).
  • Inclusive growth, poverty alleviation, demographic dividend, and Sustainable Development Goals (SDGs).
• 6. Environmental Ecology, Biodiversity, and Climate Change:
  • Ecosystem functioning, food chains, trophic levels, and ecological succession.
  • Biodiversity conservation: National Parks, Wildlife Sanctuaries, Biosphere Reserves, Ramsar Wetlands.
  • IUCN Red List status of endangered and critically endangered species.
  • International environmental conventions: UNFCCC, CBD, CITES, Ramsar, Vienna Convention.
• 7. General Science & Emerging Technologies:
  • Core scientific principles in Biology, Physics, and Chemistry (everyday applications).
  • Frontier technologies: Artificial Intelligence, Quantum Computing, Blockchain, Biotechnology, Gene Editing (CRISPR-Cas9), Space missions (ISRO/NASA), and defense systems.

3. Paper-II: Civil Services Aptitude Test (CSAT) Syllabus

• Maximum Marks: 200 | Total Questions: 80 | Duration: 2 Hours
• Negative Penalty: -0.83 marks deducted for each incorrect attempt.
• Mandatory Qualifying Nature: Candidates must score a minimum of 33% (66 marks out of 200) to qualify. Marks scored in CSAT are not included in the cutoff determination, but failing CSAT results in immediate disqualification regardless of your score in Paper-I.

Official CSAT Syllabus Curriculum:

• Comprehension: Short and long unseen reading passages evaluating logical inference, analytical deductions, central themes, and contextual implications.
• Interpersonal Skills including Communication Skills: Understanding verbal context and scenario-based communication.
• Logical Reasoning and Analytical Ability: Syllogisms, coding-decoding, blood relations, seating arrangements, directional puzzles, statement-assumption, and critical reasoning.
• Decision-Making and Problem-Solving: Practical administrative dilemmas requiring balanced ethical choices.
• General Mental Ability: Series completion, clocks, calendars, cubes and dice, spatial and Venn diagrammatic reasoning.
• Basic Numeracy (Class X Level): Number systems, divisibility rules, remainders, LCM & HCF, percentages, profit & loss, simple & compound interest, ratio & proportion, averages, time & work, permutations & combinations, and probability.
• Data Interpretation (Class X Level): Charts, bar graphs, tables, pie charts, and data sufficiency analysis.

4. Official Rules Governing Attempts & Evaluation

• What Officially Constitutes an “Attempt”?
  • An attempt is officially counted if a candidate appears in at least one paper of the Preliminary Examination.
  • Simply filling out and submitting the online application form does not count as an attempt if the candidate remains absent on exam day.
  • If a candidate writes Paper-I, marks attendance, and leaves without writing Paper-II, the attempt is officially recorded.
  • Even if a candidate’s candidature is subsequently cancelled or disqualified during the exam, the appearance still counts as an attempt.
• Negative Marking Protocol:
  • Every question features four answer alternatives. Marking an incorrect option results in a deduction of one-third (1/3rd) of the marks assigned to that question.
  • If a candidate selects more than one bubble on the OMR sheet for a single question, it is treated as an incorrect answer—even if one of the choices happens to be correct—and the penalty applies.
  • Unanswered questions left completely blank incur zero penalty.

Frequently Asked Questions (FAQs)