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NDA

National Defence Academy & Naval Academy Examination

The premier entry to the Armed Forces straight after school. UPSC-conducted written exam (Maths + GAT), followed by the 5-day SSB interview.

Who it's for

Class 12 pass / appearing, unmarried, ~16.5–19.5 years

Eligibility
  • Indian citizen, unmarried
  • Age ~16.5 to 19.5 years
  • Class 12 (PCM for Air Force/Navy)
Selection stages
  1. UPSC written (Maths + General Ability)
  2. SSB interview (5 days)
  3. Medical (SMB)
📊 Syllabus & topic weightage

What the NDA written exam actually asks, topic by topic — so you study the heavy areas first.

Mathematics

Paper I
120 questions · 300 marks · 150 min · 2.5 marks each · −0.83 per wrong answer
Official syllabus topics. No official weightage exists; ★ marks topics that are consistently heavy in recent papers.
★ Trigonometry★ Vector Algebra & 3D GeometryDifferential CalculusIntegral Calculus & Differential EquationsAnalytical Geometry (2D)AlgebraMatrices & DeterminantsStatistics & Probability

English

Paper II · Part A (GAT)
50 questions · 200 marks · 150 min · 4 marks each · −1.33 per wrong answer (GAT time shared)
Official syllabus areas (UPSC gives no per-topic counts).
Grammar & UsageVocabulary (Synonyms & Antonyms)Spotting ErrorsSentence Improvement & OrderingComprehension & CohesionCloze / Fill in the blanksIdioms & Phrases

General Knowledge

Paper II · Part B (GAT)
100 questions · 400 marks · 150 min · 4 marks each · −1.33 per wrong answer (GAT time shared)
The six official GK sections (UPSC gives no per-section counts).
PhysicsChemistryGeneral Science (Biology)History & Freedom MovementGeographyCurrent Events

How to read this: the exam structure (questions, marks, duration, marking) is verified against the official pattern. Paper structure verified against the UPSC NDA scheme. UPSC publishes no official per-topic counts, so the topic lists below are the official syllabus, with high-frequency topics marked from previous-paper analysis. Use the topic split for prioritisation — ★ marks consistently high-weight topics — not as official quotas. Sources: upsc.gov.in (NDA notification) · pw.live NDA analysis.

The SSB stage

NDA SSB tests Officer-Like Qualities through screening, psychology, GTO and the personal interview.

PrepForce simulates exactly this — a voice Personal Interview and the psychology battery, scored on the 15 OLQs.