The NDA 2026 examination is a golden gateway for candidates aspiring to serve the nation by joining the Indian Armed Forces—Army, Navy, or Air Force. Conducted by the Union Public Service Commission (UPSC), the National Defence Academy (NDA) exam is one of the most prestigious and competitive entrance tests in India.

Understanding the updated NDA syllabus 2026 and the detailed NDA exam pattern is crucial for every aspirant who wants to crack the exam in their very first attempt. Despite the academic level being largely based on the Class 10 and 12 curriculum, many candidates fail to clear the cut-off due to improper planning, lack of discipline, and unfamiliarity with the actual exam format.

That’s why structured preparation and expert guidance—whether through self-study or enrolling in a dedicated NDA coaching course—can significantly increase your chances of success. This blog will walk you through the complete NDA syllabus, updated NDA exam pattern 2026, and preparation tips to help you approach the exam with confidence and clarity.

NDA Exam Pattern 2026 – Detailed Guide for Aspirants

If you’re planning to appear for the NDA 2026 exam, understanding the NDA Exam Pattern is your first step toward success. The Union Public Service Commission (UPSC) conducts the National Defence Academy (NDA) exam twice a year to recruit eligible candidates for the Indian Army, Navy, and Air Force wings of the NDA.

Every year, lakhs of candidates apply, but only a few make it due to poor understanding of the exam structure and syllabus. That’s why knowing the NDA Exam Pattern and preparing accordingly can make a significant difference. Let’s explore the complete structure of the NDA 2026 written exam and SSB Interview to help you gear up for this prestigious defence opportunity.

NDA Exam Overview

Particulars	Details
Exam Name	National Defence Academy (NDA) Exam
Conducting Body	Union Public Service Commission (UPSC)
Exam Level	National
Mode of Exam	Offline (Pen & Paper based)
Exam Frequency	Twice a year (NDA 1 and NDA 2)
Eligibility	10+2 qualified/appearing candidates
Selection Process	Written Test + SSB Interview
Training Academies	NDA (Pune) & INA (Ezhimala)

NDA Exam Pattern 2026 – Written Examination

The NDA written exam consists of two papers:

Mathematics
General Ability Test (GAT)

These two papers are conducted on the same day, with a break in between. Here’s a breakdown of each paper:

Paper 1: Mathematics

Feature	Details
Total Marks	300
Total Questions	120 (Approx.)
Type of Questions	Objective MCQs
Duration	2.5 Hours
Marking Scheme	+2.5 for correct answer, -0.83 for wrong answer
Syllabus	Class 11 & 12 Maths (Algebra, Trigonometry, Calculus, Geometry, etc.)

The Mathematics paper is crucial for all candidates, especially for those applying for the Air Force and Naval wings of NDA. Accuracy and speed play a big role, so regular practice is essential.

Paper 2: General Ability Test (GAT)

The GAT section is divided into two parts:

Part A – English
Part B – General Knowledge (GK)

Feature	Details
Total Marks	600
Duration	2.5 Hours
Type of Questions	Objective MCQs
Negative Marking	Yes (⅓ of the marks allotted to a question)

NDA Eligibility Criteria

To apply for the NDA (National Defence Academy) exam, candidates must fulfill the following eligibility requirements set by the Union Public Service Commission (UPSC):

1. Nationality

The candidate must be:

A citizen of India, OR
A subject of Nepal or Bhutan, OR
A Tibetan refugee who came to India before January 1, 1962, with the intention of permanently settling in India.
A person of Indian origin who has migrated from Pakistan, Burma, Sri Lanka, East African countries, etc., with the intention of permanent settlement in India.

Note: Candidates other than Indian citizens must produce a certificate of eligibility issued by the Government of India.

2. Age Limit

Only unmarried male and female candidates can apply.
Age must be between 16.5 and 19.5 years.

Note: Date of birth mentioned in the 10th/12th certificate will be accepted.

3. Gender & Marital Status

Both male and female candidates can apply.
Candidate must be unmarried at the time of application and during the entire training period.

4. Educational Qualification

Wing	Qualification Required
Army	12th Class pass in any stream (Arts/Commerce/Science) from a recognized board.
Navy	12th Class pass with Physics and Mathematics.
Air Force	12th Class pass with Physics and Mathematics.
Naval Academy (10+2 Cadet Entry Scheme)	12th Class pass with Physics and Mathematics.

Note: Candidates appearing in the 12th board exam are also eligible to apply.

5. Physical Standards

Candidates must be physically fit according to the physical standards set by the NDA authorities.

No chronic illness, flat feet, or knock knees.
Proper vision (with or without glasses):
- Air Force: 6/6 in one eye and 6/9 in the other.
- Army/Navy: Slightly relaxed.
Height (minimum):
- Army/Navy: Around 157 cm
- Air Force: 162.5 cm
- Relaxation for Gorkhas, North-Eastern states, tribal regions by 5 cm.

6. Number of Attempts

There is no limit on the number of attempts, but candidates must meet the age limit criteria for each attempt.

NDA Syllabus

The National Defence Academy (NDA) written exam, conducted by UPSC, consists of two main papers:

Mathematics – 300 Marks
General Ability Test (GAT) – 600 Marks

Understanding the syllabus thoroughly is the first step to success. Here’s a complete breakdown:

1. Paper I: Mathematics (300 Marks)

The Mathematics section is based on CBSE Class 11 and 12 standards. It tests concepts, problem-solving, and applications.

a. Algebra

Operations on real and complex numbers
Laws of indices
Arithmetic and geometric progressions
Quadratic equations
Binomial theorem
Sets, relations, and functions
Complex numbers

b. Trigonometry

Trigonometric identities and equations
Heights and distances
Trigonometric functions and their graphs
Inverse trigonometric functions
Applications based on angles and triangles

c. Analytical Geometry

Cartesian coordinate system
Distance formula, section formula
Equation of a line, angle between lines
Conic sections: parabola, ellipse, hyperbola, circle

d. Differential Calculus

Concept of a function
Limit and continuity
Derivatives and their applications (increasing/decreasing functions, maxima and minima)

e. Integral Calculus and Differential Equations

Integration as inverse of differentiation
Standard integrals
Definite and indefinite integrals
Application of integrals (area under curves)
Differential equations – basic concepts and solutions

f. Vector Algebra

Magnitude and direction of vectors
Vector addition and subtraction
Scalar and vector products
Applications in geometry

g. Statistics and Probability

Mean, median, mode, standard deviation
Simple probability – independent and dependent events
Frequency distributions and data representation

2. Paper II: General Ability Test ( GAT) – 600 Marks

The GAT paper has two parts:

Part A: English (200 Marks)
Part B: General Knowledge (400 Marks)

Part A: English (200 Marks)

This section tests proficiency in grammar, comprehension, and vocabulary.

Grammar and usage
Sentence correction and improvement
Spotting errors
Synonyms and antonyms
Fill in the blanks
Para jumbles
Reading comprehension passages
Vocabulary and word usage

Part B: General Knowledge (400 Marks)

This section is divided into six major subjects:

a. Physics

Laws of motion, force, and energy
Work, power, and machines
Heat and thermodynamics
Sound and wave motion
Light and optics
Electricity and magnetism
Modern physics (nuclear energy, atoms)

b. Chemistry

Elements, atoms, and molecules
Physical and chemical changes
Acids, bases, salts
Atomic structure and periodic table
Carbon and its compounds
Metals and non-metals
Chemical reactions and equations

c. General Science

Human body systems
Food and nutrition
Health and hygiene
Reproduction and growth in plants and animals
Environment and ecosystem
Biotechnology basics

d. History, Freedom Movement

Ancient, Medieval, and Modern Indian history
Indian National Movement (1857 revolt to independence)
Important leaders and events
Social and political reforms
Constitution of India – basic features

e. Geography

Earth and its structure
Movements of earth and their effects
Climate and atmosphere
Latitude, longitude, time zones
Indian rivers, mountains, plains, deserts
Natural vegetation and agriculture
Population and resources

f. Current Affairs

National and international events
Defence-related news
Sports events
Government policies and schemes
Important personalities and awards
Scientific advancements

3. Summary of NDA Syllabus 2026

Section	Topics Covered
Mathematics	Algebra, Geometry, Calculus, Trigonometry, Statistics
English	Grammar, Comprehension, Vocabulary
Physics	Mechanics, Heat, Light, Electricity
Chemistry	Basic concepts, Reactions, Compounds
General Science	Biology, Environment, Human Body
History	Indian History, Freedom Movement
Geography	Physical & Indian Geography
Current Affairs	News, Defence, Sports, Schemes

4. Preparation Tips

Use NCERT books (Class 9 to 12) for core concepts.
Read English newspapers daily to build vocabulary and current affairs knowledge.
Practice past year NDA papers to understand the question pattern.
Revise regularly with topic-wise mock tests.
Focus on high-scoring sections like English and Maths for maximizing your total.

NDA Selection Process Chart

Stage	Details	Marks / Type	Conducted By
1. Written Examination	– Paper 1: Mathematics (300 marks)- Paper 2: GAT (600 marks)	900 Marks (Objective Type)	UPSC
	– Duration: 2.5 hours per paper	Language: English & Hindi
2. SSB Interview	5-Day Personality & Intelligence Test	900 Marks	SSB (Army/Navy/Air Force)
SSB Day 1 (Screening)	– OIR Test- Picture Perception & Description Test (PPDT)	Screening Round
SSB Day 2 (Psychology)	– TAT- WAT- SRT- SDT	Psychological Assessment
SSB Day 3–4 (GTO Tasks)	– GD, GPE, PGT, HGT, IO, Command Task, Lecturette, FGT	Group & Individual Tasks
SSB Day 5 (Interview + Conf.)	– Personal Interview- Final Board Conference	Final Recommendation
3. Medical Examination	– Vision, hearing, chest, height/weight, X-ray, mental health check	Qualifying Only	Military Hospitals
4. Final Merit List	Based on performance in Written + SSB Interview (out of 1800 marks)	No marks for medical	UPSC
Joining	Candidates join NDA (Army/Navy/Air Force) or Naval Academy as per merit	Based on final merit + preference	Ministry of Defence

Quick Glance

Total Selection Rounds: 4 (Written → SSB → Medical → Merit)
Total Marks Counted for Merit: 1800
- 900 (Written Exam)
- 900 (SSB Interview)
Medical Test: Qualifying (No marks awarded)
Languages: English & Hindi (except English section)
Final Selection: Based on Merit + Preference + Vacancy

Conclusion

The NDA exam is not just a test—it’s a gateway to a prestigious career in the Indian Armed Forces, demanding courage, discipline, and a clear strategy. From understanding the detailed syllabus and exam pattern to preparing for the SSB Interview and medical test, every step plays a crucial role in your final selection.

Success in NDA doesn’t come from last-minute preparation or guesswork. It comes from consistent study, concept clarity, regular practice, and mental preparedness. Start early, follow a structured study plan, revise thoroughly, and stay updated with current affairs. Whether you choose self-study or take help from a coaching institute, make sure your preparation is smart, focused, and aligned with the latest pattern.

With the right dedication and discipline, you can proudly earn your place in the National Defence Academy and take the first step toward serving the nation.

FAQs for NDA

1. What is the NDA exam and who conducts it?
The NDA (National Defence Academy) exam is a national-level entrance test conducted by the Union Public Service Commission (UPSC) for selecting candidates into the Indian Army, Navy, and Air Force.

2. What is the total number of marks in the NDA exam?
The written exam is for 900 marks (300 for Mathematics + 600 for GAT), and the SSB Interview also carries 900 marks, making a total of 1800 marks for final merit.

3. Is there negative marking in the NDA exam?
Yes, there is negative marking. One-third (⅓) of the marks for a question are deducted for every wrong answer.

4. What is the NDA selection process?
The NDA selection process includes:

Written Exam (900 marks)
SSB Interview (900 marks)
Medical Examination
Final Merit List

5. What is the eligibility criteria for NDA 2026?

Age: 16.5 to 19.5 years
Qualification: Must have passed or be appearing in 10+2
Gender: Both males and females are eligible
Nationality: Must be an Indian citizen

NDA Syllabus 2026: NDA Exam Pattern[Revised]