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CDS (Combined Defence Services) 2026 - Syllabus

Union Public Service Commission (UPSC)

Syllabus

  1. ENGLISH (Code No. 11)

  • Grammar & Vocabulary: Error spotting, synonyms, antonyms, sentence improvement, word substitution.

  • Comprehension: Reading comprehension, ordering of sentences/words.

  1. GENERAL KNOWLEDGE (Code No. 12)

  • Current Affairs: National & International events, awards, sports, books, defense news.

  • Science: Physics, Chemistry, Biology (basic concepts).

  • History: Indian History.

  • Geography: Physical, Political, Economic Geography.

  • Polity & Economics: Indian Constitution, basic economics, planning, banking, government schemes.

  • Defense: Indian Armed Forces, recent procurements, exercises.

  1. Elementary Mathematics (For IMA, INA, AFA only)

  • Number System: Natural, Integers, Rational, Real numbers, Prime/Composite, LCM/HCF.

  • Arithmetic: Unitary method, Time & Distance/Work, Percentages, Profit/Loss, SI/CI, Ratio/Proportion.

  • Algebra: Factorization, Polynomials, Logarithms, Quadratic Equations.

  • Geometry: Lines, Angles, Triangles, Quadrilaterals, Circles.

  • Trigonometry: Basic identities, Heights & Distances.

  • Statistics: Mean, Median, Mode, Data Interpretation.

  • 1. Stage 2 - Services Selection Board (SSB) Interview: Intelligence and Personality Test

  • Two-stage SSB selection: Stage I (OIR tests and PP&DT), Stage II (Interview, GTO Tasks, Psychology Tests, Conference)

  • SSB Interview marks: Equal to written examination marks (300 for IMA/INA/AFA, 200 for OTA)

  • 2. Stage 3 - Medical Examination: Special Medical Board at designated Armed Forces Medical Services Hospitals

  • Candidates must secure minimum qualifying marks in both written exam and SSB test

  • Final selection based on combined marks (Written + SSB) subject to medical fitness

  • Negative marking: 0.33 marks deduction for each wrong answer