NDA Preparation Guide — Exam Pattern, Syllabus & Strategy
NDA preparation guide: exam pattern, syllabus, eligibility, SSB interview, fitness and a 6-month study plan, plus the official NDA 2027 exam dates.
NDA (National Defence Academy) exam is conducted by UPSC twice a year for entry into the Indian Armed Forces. Written exam: 900 marks (Maths 300 + GAT 600). SSB Interview: 900 marks. Age: 16.5–19.5 years. Class 12 passed/appearing (PCM for Navy/Air Force). This guide covers complete preparation strategy.
NDA Exam Structure
| Paper | Subject | Questions | Marks | Duration |
|---|---|---|---|---|
| Paper 1 | Mathematics | 120 | 300 | 2.5 hours |
| Paper 2 | General Ability Test (GAT) | 150 | 600 | 2.5 hours |
| Written Total | 270 | 900 | 5 hours | |
| SSB Interview | — | 900 | 5 days | |
| Grand Total | — | 1800 | — | |
Paper 1: Mathematics Syllabus
| Topic | Key Areas | Approx. Share (estimate) |
|---|---|---|
| Algebra | Complex numbers, Quadratic equations, Sequences & Series, Permutations, Binomial theorem | 25–30% |
| Matrices & Determinants | Operations, inverse, solving equations | 10–15% |
| Trigonometry | Identities, equations, inverse trig, heights & distances | 15–20% |
| Calculus | Limits, differentiation, integration, differential equations | 15–20% |
| Coordinate Geometry | Straight lines, circles, conics | 10–15% |
| Vectors & 3D | Vector operations, 3D coordinate geometry | 5–10% |
| Statistics & Probability | Mean, variance, probability distributions | 5–10% |
The shares above are rough estimates from recent papers — UPSC does not publish topic weightage for NDA Maths.
Maths tip: NDA Maths is Class 11–12 level (NCERT). It is easier than JEE Main but you need speed — 120 questions in 150 minutes = 1.25 minutes per question. Practise speed with previous year papers.
Paper 2: GAT (General Ability Test) Syllabus
Part A: English (200 marks)
| Section | Topics |
|---|---|
| Grammar & Usage | Sentence correction, fill in blanks, spotting errors, synonyms/antonyms |
| Comprehension & Cohesion | Unseen passages with questions, sentence ordering |
| Vocabulary | Idioms, phrases, one-word substitutions |
UPSC's syllabus lists grammar and usage, vocabulary, comprehension and cohesion in extended text, but gives no marks split for English.
Part B: General Knowledge (400 marks)
| Section | Topics | Marks (approx.) |
|---|---|---|
| A. Physics | Mechanics, heat, sound, light, electricity and magnetism — general, largely school-level | ~100 (25%) |
| B. Chemistry | Elements and compounds, reactions, acids and bases, everyday chemistry | ~60 (15%) |
| C. General Science | Human body, nutrition, diseases, basic biology, achievements in science | ~40 (10%) |
| D. History & Freedom Movement | Indian history and the freedom struggle, world history | ~80 (20%) |
| E. Geography | India & World — physical, climate, resources, maps | ~80 (20%) |
| F. Current Events | Recent national and international events, prominent personalities | ~40 (10%) |
The approximate shares come from UPSC's syllabus note: Sections A to F carry about 25%, 15%, 10%, 20%, 20% and 10% of Part B.
Strengthen your Maths for NDA
Super Tutor has chapter-wise Class 11–12 Maths, Physics and Chemistry with summaries, practice quizzes, flashcards and a study planner — the core of Paper 1 and the science in the GAT.
Start Maths Practice — Free6-Month Preparation Plan
| Month | Maths | English | GK | Physical Fitness |
|---|---|---|---|---|
| Month 1 | Algebra + Trigonometry basics from NCERT | Grammar rules (Wren & Martin) | Start reading newspaper daily | Running: 2 km daily |
| Month 2 | Coordinate Geometry + Calculus basics | Vocabulary building (10 words/day) | Physics + Chemistry (NCERT) | Running: 3 km, push-ups |
| Month 3 | Matrices + Vectors + Statistics | Comprehension practice daily | History + Geography | Running: 4 km, pull-ups |
| Month 4 | Previous year paper solving | Previous year English papers | Current affairs compilation | Running: 5 km, obstacle training |
| Month 5 | Full mock tests (weekly) | Mock tests | Revision + current affairs | Full fitness routine daily |
| Month 6 | Revision + weak areas | Final revision | Last 3 months current affairs | 2.4 km comfortably under 15 min |
SSB Interview — What to Expect
| Day | Test | What It Assesses |
|---|---|---|
| Day 1 | Screening: OIR (Officer Intelligence Rating) + PPDT (Picture Perception & Discussion Test) | Basic intelligence + ability to perceive and discuss |
| Day 2 | Psychological Tests: TAT (Thematic Apperception Test), WAT (Word Association Test), SRT (Situation Reaction Test), Self Description | Personality, thought patterns, reactions |
| Day 3–4 | Group Testing: GD, GPE (Group Planning Exercise), PGT, HGT, Lecturette, Command Task | Leadership, teamwork, communication, initiative |
| Day 2–4 | Personal Interview (on one of the testing days) | Overall personality, motivation, knowledge |
| Day 5 | Conference — final board decision | Whether you are recommended |
SSB tip: Be genuine. The assessors look for OLQs (Officer Like Qualities) — not acting or memorised answers. Qualities they assess: initiative, courage, determination, cooperation, self-confidence, sense of responsibility, and ability to influence.
Physical Fitness and Medical Standards
| Area | What to aim for |
|---|---|
| Running | 2.4 km in 15 minutes or better |
| Push-ups and sit-ups | At least 20 each |
| Chin-ups (pull-ups) | At least 8 |
| Rope climbing | 3–4 metres |
| Height, weight and vision | Differ by service and branch (the Air Force flying branch is the strictest). They are set by the Joint Order Manual of Medical Standards for Entry into Armed Forces, published on joinindianarmy.nic.in — check it before you apply. |
The fitness targets above are the preparation levels earlier UPSC NDA notices advised; they are not a scored test at SSB. After SSB, recommended candidates have a medical examination, and many are rejected for fixable issues such as ear wax, a deviated nasal septum or being over- or underweight — so get a check-up early.
Start physical training from Day 1 of preparation. Fitness cannot be built in the last month. Run daily, do push-ups and pull-ups, and gradually increase intensity.
Important Dates — NDA 2027
| Event | NDA I (2027) | NDA II (2027) |
|---|---|---|
| Notification | 2 December 2026 | 12 May 2027 |
| Last Date to Apply | 22 December 2026 | 1 June 2027 |
| Written Exam | 11 April 2027 | 19 September 2027 |
| SSB Interview | June–August 2027 (expected) | November 2027–January 2028 (expected) |
Notification, last-date and exam dates are from UPSC's official 2027 exam calendar. For reference, NDA II 2026 was held on 13 September 2026 for the course starting on 1 July 2027. Apply on upsconline.nic.in (create your account and Universal Registration Number once, then fill the NDA form — no corrections are allowed after you submit). Fee in 2026: ₹100 (SC/ST candidates, women and eligible wards of JCOs/NCOs/ORs: nil). See the full NDA 2027 dates page for admit card and result timelines.
Books for NDA Preparation
| Subject | Best Books |
|---|---|
| Mathematics | NCERT Class 11–12, RS Aggarwal (Quantitative Aptitude), Pathfinder for NDA (Arihant) |
| English | Wren & Martin (Grammar), Word Power Made Easy (Vocabulary) |
| General Knowledge | NCERT Class 6–12 (History, Geography, Science), Lucent's GK, Monthly current affairs magazine |
| Previous Year Papers | Arihant NDA/NA Previous Year Papers (last 10 years) |
Exam pattern, syllabus, eligibility and training details are based on UPSC's NDA & NA (II) 2026 notification (Notice No. 10/2026-NDA-II). Medical standards are in the Joint Order Manual on joinindianarmy.nic.in. UPSC may update eligibility or pattern for 2027 — check upsc.gov.in for official notifications.
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Start freeFrequently Asked Questions
What is the eligibility for NDA exam?
Age: 16.5–19.5 years on the first day of the course. Education: Class 12 passed or appearing (any stream for Army; PCM compulsory for Navy and Air Force). Gender: Both male and female candidates can apply. Marital status: Must be unmarried. Physical fitness: Must meet height, weight, and vision standards. Permanent tattoos are allowed only on the inner forearm (elbow to wrist) and the back of the hand; tribal customary tattoos are judged case by case. The exact birth-date window is fixed in each notification — for NDA II 2026 it was 1 January 2008 to 1 January 2011.
How many times can I attempt NDA?
NDA is conducted twice a year (NDA I in April, NDA II in September). There is no fixed limit on attempts: you can apply to every NDA exam whose birth-date window and education rule you meet, so the number of chances depends on your date of birth. Each attempt is independent — previous scores do not carry forward.
What is the NDA exam pattern?
NDA Written Exam has 2 papers: Paper 1 — Mathematics (120 questions, 300 marks, 2.5 hours) and Paper 2 — General Ability Test (GAT) (150 questions, 600 marks, 2.5 hours). GAT includes English (200 marks) + General Knowledge (400 marks covering Physics, Chemistry, General Science, History and the Freedom Movement, Geography, and Current Events). Total: 900 marks. Negative marking: one-third of a question's marks for each wrong answer. No calculators or log tables.
What happens after clearing the NDA written exam?
After clearing the written exam, you are called for SSB (Services Selection Board) Interview — 5 days of testing including: Day 1: Screening (OIR + PPDT), Day 2: Psychological Tests (TAT, WAT, SRT, Self Description), Days 3–4: Group Testing (GD, GPE, GTO tasks), with the Personal Interview held on one of the testing days, and Day 5: Conference. Recommended candidates then have a medical examination. SSB carries 900 marks. Final merit: Written (900) + SSB (900) = 1800 marks.
Is coaching necessary for NDA?
Not mandatory but helpful. Self-study is possible if you: (1) follow NCERT Class 11–12 Maths thoroughly, (2) read newspapers daily for current affairs, (3) practise previous year papers, (4) prepare for SSB through mock interviews. Coaching helps with: structured study plan, SSB preparation, physical training guidance. Many candidates clear NDA through self-study.
What is the training after NDA selection?
Selected candidates join the National Defence Academy in Khadakwasla, Pune for 3 years. Training includes academic education leading to a JNU degree (B.Sc./B.Sc. Computer/B.A., or B.Tech. completed at the next academy), military training, physical fitness, adventure activities, and leadership development. After NDA, Army cadets spend a year at IMA Dehradun and Naval cadets a year at INA Ezhimala; Air Force cadets go to the Air Force Academy, Hyderabad (flying branch training lasts about one and a half years) or the Air Force Technical College, Bengaluru.