NDA Syllabus 2026 – Written Exam Pattern, Topics and SSB Breakdown

NDA has two completely different selection components that require completely different preparation. The written exam (1,200 marks total — Maths + GAT) is pure academics, tested in 5 hours. The SSB interview (900 marks, 5 days) has nothing to do with your marks — it tests officer-like qualities: leadership, communication, teamwork, decision-making under ambiguity. Candidates who clear the written but fail SSB repeatedly are making a preparation error: they treat NDA as a single exam when it is actually two very different ones.

👉 NDA Eligibility 2026 — age limits, PCM requirement, physical standards

Written Exam Pattern

Paper	Subject	Marks	Duration	Questions
Paper I	Mathematics	300	2.5 hours	120 (2.5 marks each)
Paper II	General Ability Test (GAT)	600	2.5 hours	150
	— Part A: English	200		50
	— Part B: General Knowledge	400		100
Total	Written Exam	900	5 hours	270
SSB Interview	Intelligence + Personality	900	5 days	—
Grand Total	—	1,800	—	—

Negative marking: 0.33 marks deducted per wrong answer in Maths; 0.33 in GAT. The written exam carries 900 of the 1,800 total marks — exactly 50%. SSB carries the other 50%. Most candidates spend 90% of their preparation on the written, then walk into SSB with 5 days of preparation. That split doesn't reflect the actual mark distribution.

Mathematics — Topic-Wise Breakdown

NDA Maths is Class 11–12 level with emphasis on speed and accuracy. The question paper has 120 questions in 150 minutes — 75 seconds per question. There is no partial credit. The topic distribution in recent papers:

Topic	Approx Questions	NCERT Class
Algebra (sets, relations, quadratics, progressions)	15–18	11
Matrices and Determinants	6–8	12
Trigonometry	12–15	11–12
Analytical Geometry (2D and 3D)	15–18	11–12
Differential Calculus	10–12	12
Integral Calculus and Differential Equations	10–12	12
Vector Algebra	6–8	12
Statistics and Probability	6–8	11–12
Miscellaneous (complex numbers, binomial)	8–10	11

The highest-yield topics by marks-per-preparation-time are Trigonometry, Differential Calculus, and Analytical Geometry. These three areas together typically contribute 35–40 questions. Candidates who are weak in Calculus specifically struggle disproportionately because calculus questions are distributed across Differential Calculus, Integral Calculus, and implicitly in 3D Geometry problems.

GAT Part B (General Knowledge) — Topic Breakdown

Section	Approx Questions	What It Tests
Physics	20–25	Mechanics, optics, electricity — Class 11–12 level
Chemistry	10–15	Periodic table, reactions, electrochemistry
General Science (Biology)	10–12	Human body, nutrition, disease
History and Freedom Movement	10–12	1857 onwards, constitutional development
Geography	10–15	Indian geography, climate, physical features
Current Events	10–15	Defence news, science news, national events

Physics in NDA GAT is the hardest science section — questions require conceptual understanding, not just recall. "A ball is thrown at 45° — find the range" type questions appear regularly. Current events in NDA specifically favour defence and science news: missile launches, defence procurement, space missions, and recent military exercises. Students who read The Hindu or PIB daily for 6 months before the exam have a systematic advantage here.

SSB Interview — The 5-Day Process

SSB (Services Selection Board) is a 5-day process at one of the SSBs across India (Allahabad, Bhopal, Bangalore, Mysore, Jalandhar, Dehradun, Varanasi). It has two stages:

Stage 1 (Day 1): Screening. Two tests: OIR (Officer Intelligence Rating) — verbal and non-verbal intelligence tests — and PPDT (Picture Perception and Description Test). In PPDT, you see a blurred image for 30 seconds, write a story about it, and then narrate it in a group. Stage 1 screens approximately 40–60% of candidates out on Day 1. If you don't clear Stage 1, you leave SSB that day.

Stage 2 (Days 2–5): Three parallel assessors evaluate you simultaneously — a Psychologist, a GTO (Group Testing Officer), and an Interviewing Officer. All three must independently recommend you for selection.

Psychology tests (Day 2): TAT (Thematic Apperception Test — write stories about 11 images + 1 blank), WAT (Word Association Test — write one word or sentence for each of 60 words in 15 seconds each), SRT (Situation Reaction Test — respond to 60 situations in 30 minutes), and Self Description (write what your parents, teachers, friends, and you yourself think about your qualities).

GTO tasks (Days 3–4): Group Planning Exercise, Progressive Group Tasks (outdoor physical tasks in groups), Half Group Task, Lecturette (3-minute impromptu speech on a given topic), Command Task (lead a team to complete a task), Individual Obstacles, Final Group Task.

Personal Interview (Day 3 or 4): 30–45 minutes with an Interviewing Officer. Covers your background, hobbies, current events, service motivation, self-awareness.

Conference (Day 5): All three assessors meet. The final recommendation is unanimous — if any one of the three doesn't recommend you, you are not selected regardless of how well you did with the other two.

Frequently Asked Questions

Q: What is the NDA written exam cutoff?

UPSC doesn't publish the exact cutoff in advance. In recent years (NDA I and II 2024–25), the combined written cutoff for SSB call-up was approximately 360–390 out of 900. Among candidates who appeared for SSB, the final merit list cutoff was 700–720 out of 1800. These numbers shift by ±20–30 marks each cycle.

Q: How many attempts are allowed in NDA?

You can apply as long as you meet the age criterion. For NDA I 2026 (Army/Navy): candidates born between July 2, 2007 and July 1, 2009 are eligible. For Air Force (NDA I 2026): same window. Most candidates get 2–3 NDA attempts before aging out at 19.5 years. There is no official "attempt limit" — only the age window matters.

Q: Is Maths Paper I compulsory even for Air Force and Navy?

Yes — all three services (Army, Navy, Air Force) use the same written exam. Paper I Maths is compulsory for all. The minimum qualifying marks in Maths were 25% (75/300) in recent cycles, but cutoffs in practice are much higher.

Q: What happens if I clear written but fail SSB?

You get another chance — as long as you are within the age limit. There is no penalty for failing SSB. Many officers cleared SSB on their second or third attempt after their first failure. The key is using the time between attempts to actively develop: joining an NCC unit, taking up team sports, doing public speaking, leading activities at school or college. SSB evaluates actual qualities, not performed qualities — you can't fake it for 5 days.

SSB Psychology Tests — What the Psychologist Is Actually Looking For

The Psychology tests at SSB are not knowledge tests — they are projective tests. The psychologist is not checking what you know; they are checking your thought patterns, values, and personality through the stories you tell and the words you associate. Understanding this changes how you should approach them.

TAT (Thematic Apperception Test): You see 11 blurry images (plus one blank card) and write a story about each in approximately 3–4 minutes. The pattern that gets you recommended: your protagonist faces a problem, does something constructive to solve it, and achieves a positive outcome. The patterns that hurt you: your protagonist is passive (things happen to them, they don't act), the story ends ambiguously or negatively, or the protagonist succeeds through luck rather than effort. The psychologist reads hundreds of TAT stories — stories with passive heroes or negative endings stand out negatively.

WAT (Word Association Test): You see a word on screen for 15 seconds and write one meaningful sentence. The evaluation isn't about whether your sentence is grammatically correct — it's about whether your association is positive, mature, and action-oriented. For the word "failure": "Failure teaches us more than success and motivates better preparation" scores better than "Failure is demotivating." For the word "jungle": associating it with adventure, nature, or resilience is better than threat or fear. The WAT is fast — 60 words in 15 minutes — which means your instinctive associations matter more than your deliberate ones.

SRT (Situation Reaction Test): 60 situations in 30 minutes (30 seconds per situation). You describe what you would do. The scoring favours responses that are practical, immediate, team-oriented, and confident. A situation like "Your vehicle breaks down 20 km from the nearest town at night" — a good response is action-focused: check tools, assess repair possibility, contact help, guide traffic if needed. A poor response is passive: wait for help.

GTO Tasks — Common Mistakes That Get Candidates Screened Out

The Group Testing Officer watches 8–10 candidates do physical and planning tasks together for two days. What gets candidates screened out has almost nothing to do with physical ability:

Dominating without listening: In Group Planning Exercise and Group Discussion segments, candidates who talk the most are not always scored highest. The GTO watches whether you build on others' ideas or only push your own. Interrupting team members repeatedly is a negative signal — it suggests low emotional intelligence, not leadership.

Being physically strong but planning-weak: In Progressive Group Tasks (outdoor obstacle tasks), teams are given physical challenges that require both physical effort and planning. The candidate who charges at obstacles without planning the approach scores lower than one who takes 30 seconds to assess the situation and suggest a method — even if the method doesn't work perfectly.

Disappearing in the Command Task: In the Command Task, you lead a small team to accomplish a specific objective. Candidates who choose the easiest possible task or give instructions without participating are negatively marked. The GTO wants to see someone who engages: picks a challenging task, leads by example, adjusts when the approach isn't working.

Preparation Timeline — Realistic 12-Month Plan

Assuming you are in Class 11 with NDA I in April of Class 12:

Months 1–6 (Class 11): Cover NCERT Maths thoroughly — all chapters listed in the NDA syllabus. Don't start NDA-specific coaching yet; the foundation is the same as your board preparation. Do 10 timed mock tests on NDA pattern Maths by Month 6 to calibrate your speed.

Months 7–10 (Class 12, first half): Start GAT preparation in parallel with board prep. Focus on Physics (20–25 questions in paper). Track defence news and science news weekly. Read one editorial in English daily — this directly feeds your English comprehension and writing skills for the written exam and later for SSB interview.

Months 11–12 (pre-NDA exam): Full mock tests — 5 hours continuous (Paper I + Paper II back to back). Don't take mock tests section by section — take them end-to-end. Your performance at hour 5 is what the exam hall will look like.

SSB preparation should start in parallel from Month 1, not after you clear the written. Join NCC, take up team sports, do public speaking — these are not things you can cram in the 3 weeks between written result and SSB call letter.

Mathematics — Topic-wise Marks Distribution

NDA Maths paper is 300 marks (120 questions × 2.5 marks each). Based on analysis of past papers, here is the approximate topic-wise distribution:

Algebra + Calculus together account for ~40–45% of the Maths paper. If you are weak in either, that is where your preparation time should go first. Trigonometry is the easiest to improve quickly — 3 weeks of focused practice can take you from 5/20 to 15/20.

GAT Section-wise Breakdown

The GAT (General Ability Test) is 600 marks (150 questions × 4 marks each). It has two parts:

English (200 marks) is the single largest section — don't neglect it. Many science-focused candidates lose the exam in Part A while scoring well in Part B.

Frequently Asked Questions

Q: Is there negative marking in NDA written exam?

Yes — for Maths, 0.83 marks are deducted per wrong answer (1/3 of 2.5). For GAT, 1.33 marks per wrong answer (1/3 of 4). Leaving a question blank scores 0. Strategy: never guess blindly. If you can eliminate 2 of 4 options with confidence, attempting is mathematically worth it.

Q: What is a safe score to clear the NDA written exam?

UPSC does not disclose official cut-offs. Based on informed estimates: targeting 360–400 out of 900 (≈40–45%) gives a reasonable chance of SSB call. Aiming for 450+ puts you comfortably through. The actual cut-off varies by cycle and number of vacancies — in competitive cycles it has gone as high as 320–350.

NDA Syllabus 2026 – Written Exam, GAT Topics और SSB का पूरा Process

NDA दो बिल्कुल अलग selection components का combination है। Written exam (1,200 marks) pure academics है। SSB interview (900 marks, 5 days) आपके marks से कोई लेना-देना नहीं — वह officer-like qualities test करता है: leadership, communication, decision-making। जो candidates written clear करने के बाद SSB बार-बार fail करते हैं वे यही गलती करते हैं — दोनों को एक ही exam समझकर prepare करते हैं।

👉 NDA Eligibility 2026 — age, PCM requirement, physical standards

Written Exam Pattern

Paper	Subject	Marks	Duration
Paper I	Mathematics	300	2.5 hours (120 questions)
Paper II	GAT — English	200
Paper II	GAT — General Knowledge	400	2.5 hours (150 total)
Written Total	—	900	5 hours
SSB Interview	Intelligence + Personality	900	5 days
Grand Total	—	1,800	—

Negative marking: 0.33 per wrong answer। Written 50%, SSB 50% — लेकिन ज़्यादातर candidates 90% preparation written पर करते हैं। यही असली problem है।

Mathematics — Topic Breakdown

Topic	Approx Questions
Algebra (sets, progressions, quadratics)	15-18
Trigonometry	12-15
Analytical Geometry (2D और 3D)	15-18
Differential Calculus	10-12
Integral Calculus + Differential Equations	10-12
Matrices and Determinants	6-8
Vector Algebra	6-8
Statistics और Probability	6-8

Highest-yield topics: Trigonometry, Differential Calculus, Analytical Geometry — तीनों मिलाकर 35-40 questions। Calculus weak है तो disproportionate नुकसान होता है क्योंकि यह 3D Geometry में भी implicitly आता है।

GAT General Knowledge — Section Breakdown

Section	Approx Questions
Physics	20-25
Chemistry	10-15
General Science (Biology)	10-12
History	10-12
Geography	10-15
Current Events (Defence + Science)	10-15

Physics NDA GAT में hardest है — conceptual understanding चाहिए। Current events में specifically defence और science news: missile launches, defence procurement, space missions। Daily The Hindu/PIB 6 months = systematic advantage।

SSB Interview — 5 दिन का Process

Stage 1 (Day 1) — Screening: OIR (Officer Intelligence Rating — verbal + non-verbal) और PPDT (Picture Perception and Description Test — 30 seconds blurred image देखें, story लिखें, group में narrate करें)। 40-60% candidates Day 1 पर ही screen out हो जाते हैं।

Stage 2 (Days 2-5): तीन assessors parallel में evaluate करते हैं — Psychologist, GTO, Interviewing Officer। तीनों का independent recommendation ज़रूरी है।

Psychology Tests (Day 2): TAT (11 images + 1 blank पर stories), WAT (60 words, 15 seconds each), SRT (60 situations, 30 minutes), Self Description।

GTO Tasks (Days 3-4): Group Planning Exercise, Progressive Group Tasks (outdoor), Lecturette (3 minutes impromptu speech), Command Task, Individual Obstacles, Final Group Task।

Personal Interview (Day 3/4): 30-45 minutes — background, hobbies, current events, service motivation।

Conference (Day 5): तीनों assessors meet करते हैं। Final recommendation unanimous होनी चाहिए — एक भी no = not selected।

अक्सर पूछे जाने वाले प्रश्न

Q: Written exam cutoff कितनी होती है?

Recent cycles में SSB call-up के लिए written cutoff approximately 360-390/900 रही है। Final merit cutoff (written + SSB) 700-720/1800। हर cycle में ±20-30 marks shift होती है।

Q: NDA कितने attempts मिलते हैं?

Age window तक जितने चाहें — official attempt limit नहीं है। Most candidates को 2-3 attempts मिलते हैं 19.5 years तक।

Q: Written clear करके SSB fail हों तो?

Age limit में हों तो दोबारा try कर सकते हैं। SSB fail का कोई penalty नहीं। कई successful officers 2nd-3rd attempt में selected हुए। Between attempts: NCC join करें, team sports, public speaking, leadership activities। SSB actual qualities evaluate करती है — 5 days तक fake नहीं होता।

SSB Psychology Tests — Psychologist Actually क्या देखता है

Psychology tests knowledge tests नहीं हैं — projective tests हैं। Psychologist आपके thought patterns, values, personality देखता है stories और word associations के through।

TAT: 11 images + 1 blank पर stories। Recommended pattern: protagonist को problem आती है → वह constructive action लेता है → positive outcome। Avoid: passive protagonist (चीज़ें होती हैं, वह करता नहीं), negative या ambiguous ending, luck-based success।

WAT: 60 words, 15 seconds each। Instinctive association matter करता है — deliberate नहीं। "Failure" word के लिए: "teaches more than success" > "demotivating"। Positive, mature, action-oriented associations score better।

SRT: 60 situations, 30 seconds each। Practical + immediate + team-oriented + confident responses। Vehicle रात में 20 km से दूर break down = action-focused response: repair assess, help contact, traffic manage। Passive "wait for help" = poor response।

GTO Tasks — Common Mistakes

बिना सुने dominate करना: Group Planning में सबसे ज़्यादा बोलना = highest score नहीं। GTO देखता है आप दूसरों की ideas पर build करते हैं या सिर्फ अपनी push करते हैं। Interrupt करना = low emotional intelligence signal।

Plan के बिना physically charge करना: Progressive Group Tasks में 30 seconds assess + plan करना बेहतर है — physically strong but planning-weak = lower score।

Command Task में passive होना: Easy task choose करना या participate किए बिना सिर्फ instructions देना = negative। Challenging task लें, lead by example, adjust करें।

12-Month Preparation Timeline

Month 1-6 (Class 11): NCERT Maths thoroughly cover करें। 10 timed NDA Maths mocks by Month 6।

Month 7-10 (Class 12 first half): GAT parallel में — Physics focus (20-25 questions)। Weekly defence + science news। Daily 1 editorial English में — comprehension और writing skills दोनों feed होती हैं।

Month 11-12: Full mock tests — 5 hours continuous (Paper I + II back to back)। Section-by-section मत लो — end-to-end।

SSB preparation Month 1 से शुरू करें — written result के बाद नहीं। NCC join करें, team sports, public speaking — यह 3 weeks में cram नहीं होता।

अक्सर पूछे जाने वाले प्रश्न (Syllabus)

Q: NDA की तैयारी के लिए best books कौन सी हैं?

Mathematics: NCERT Class 11-12 (foundation), R.S. Aggarwal NDA Mathematics (practice)। GAT Physics: NCERT Class 11-12 sufficient है। GAT General: Manohar Pandey General Knowledge + Current Affairs monthly magazine। English: Wren & Martin Grammar (basics), previous year NDA papers (pattern familiarity)।

Q: GAT की English section की तैयारी कैसे करें?

English section (200 marks) में grammar, vocabulary, reading comprehension। Grammar के लिए: error spotting, fill in the blanks, sentence correction — Class 10-12 grammar rules cover करें। Vocabulary: daily 10 new words, not from random lists — The Hindu के articles में encounter हुए words note करें और context में याद रखें। Previous year NDA papers सबसे accurate practice material हैं।

Q: SSB की तैयारी के लिए coaching ज़रूरी है?

SSB coaching helpful हो सकती है लेकिन यह shortcut नहीं है। Coaching centres SSB format familiarise करते हैं — TAT stories कैसे लिखें, GTO tasks में क्या approach लें। लेकिन actual qualities (leadership, communication, decisiveness) — यह classroom में नहीं develop होती। Coaching + real-world activity (NCC, sports, debate) = better combination है।

Q: NDA में kitna selection rate है?

Approximately 4-5 lakh candidates apply हर cycle में। Written cutoff क्लियर करने वाले ~8,000-12,000 SSB के लिए call होते हैं। SSB में से ~400-600 final merit में आते हैं। Overall selection rate: ~0.1-0.15% — highly competitive है लेकिन इसका मतलब यह नहीं कि impossible। Consistent preparation + SSB readiness = realistic chance।

गणित — Topic-wise Marks Distribution

NDA Maths paper 300 marks का है (120 questions × 2.5 marks)। Topic-wise अनुमानित distribution:

Algebra + Calculus मिलकर ~40–45% paper हैं। Trigonometry सबसे तेजी से improve होता है — 3 हफ्ते की focused तैयारी से 5/20 से 15/20 हो सकता है।

GAT Section-wise Breakdown

GAT (General Ability Test) 600 marks का है (150 questions × 4 marks):

English (200 marks) सबसे बड़ा single section है। Science-focused candidates अक्सर Part A में marks खोते हैं — English ignore मत करो।

SSB Interview — 5 दिन का पूरा Process

SSB में overall selection rate screened-in candidates में से ~15–20% है। Genuine personality और physical fitness दोनों ज़रूरी हैं।

अक्सर पूछे जाने वाले प्रश्न

Q: NDA written exam में negative marking है क्या?

हाँ। Maths में प्रति गलत answer 0.83 marks (2.5/3) काटे जाते हैं। GAT में 1.33 marks (4/3) per wrong answer। Blank छोड़ने पर 0। Strategy: अगर 4 options में से 2 eliminate कर सकते हैं — attempt करना mathematically worth it है।

Q: NDA written exam clear करने के लिए कितने marks चाहिए?

UPSC official cut-off publish नहीं करता। Estimated: 360–400/900 (40–45%) से SSB call मिलने की reasonable chance। 450+ comfortable position है। Cycle-wise variation होती है।

Q: क्या Arts students NDA दे सकते हैं?

NDA I और II के लिए PCM (Physics, Chemistry, Maths) compulsory है 12th में। Arts या Commerce students generally eligible नहीं हैं। Exception: OTA के लिए CDS exam के ज़रिए Arts graduates eligible हैं — लेकिन NDA में नहीं।

Q: NDA की तैयारी के लिए coaching ज़रूरी है?

Coaching helpful है लेकिन mandatory नहीं। NCERT 11–12 PCM thoroughly पढ़ें, NDA previous year papers solve करें, और English पर daily focus दें — यह self-study से भी achievable है। SSB के लिए कोई coaching नहीं — genuine personality develop करना ज़रूरी है।

NDA GAT में Current Affairs — क्या पढ़ें

GAT paper में Current Affairs section 80 marks का है। पिछले 2 साल के news cover करने होते हैं:

• Defence & Security: India के नए missile systems (Agni-5, BrahMos), new warships, Exercise (Tasman Sabre, Yudh Abhyas), DRDO achievements
• International Relations: India-China, India-Pakistan, SCO, QUAD, G20 (India की presidency), BRICS
• Science & Technology: Chandrayaan-3 की success, ISRO missions, Aditya-L1
• Awards & Honours: Gallantry awards (Param Vir Chakra, Vir Chakra), Bharat Ratna
• Sports: Olympics, Asian Games में India का performance, cricket World Cup

Source: The Hindu/Indian Express last 2 years + Manorama Yearbook। Daily 15 minutes current affairs reading से यह section 60–65 marks score करने योग्य है।

Mathematics में सबसे ज़्यादा Marks कैसे Score करें

Maths paper 300 marks का है — यहाँ score करना सबसे important है:

• Algebra और Trigonometry (35–45Q): NCERT 11–12 पहले complete करें। Quadratic equations, progressions, binomial theorem — ये guaranteed questions हैं।
• Calculus (20–25Q): Limits, derivatives, integration की basic formulae याद करें। NDA में calculus conceptual है, numerical नहीं।
• Statistics (10Q): Mean, Median, Mode, Standard Deviation — scoring section, easily 8–10 marks।
• Geometry (15–20Q): Coordinate geometry (line, circle, parabola) + 3D geometry basics।

Target: Maths में 180+/300 अगर syllabus complete coverage हो। 200+ के साथ cut-off safe रहती है।

Q: NDA exam में calculator allowed है?

नहीं। NDA exam में कोई calculator, log table, या electronic device allowed नहीं है। सभी calculations mental/rough work से करनी होती हैं। इसीलिए speed और accuracy दोनों practice से आती है — daily 20–30 problems solve करने की habit ज़रूरी है।

Q: क्या Hindi medium students NDA दे सकते हैं?

हाँ। NDA written exam Hindi और English दोनों में दी जा सकती है। Maths bilingual है — Hindi में explain किया गया है। GAT paper भी Hindi medium available है। SSB interview English में होता है — उसके लिए basic conversational English ज़रूरी है। पूरे NDA career में English importance बढ़ती जाती है।