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Claim Free Beta AccessThe National Defence Academy (NDA) sample paper PDF with answer key is the most critical resource for aspirants. We at Exam Bhai recommend solving these papers to understand the UPSC marking scheme, time management, and question difficulty, which directly correlates to improving your final score in the actual written examination.
What is the Exam?
The National Defence Academy (NDA) examination is a prestigious, highly competitive national-level entrance test conducted twice annually by the Union Public Service Commission (UPSC). It serves as the gateway for young aspirants to join the Indian Army, Navy, and Air Force as commissioned officers.
We at Exam Bhai define the NDA exam not just as a test of academic knowledge, but as a rigorous assessment of an candidate's analytical aptitude, speed, and strategic thinking. Passing this exam is the first step toward the Service Selection Board (SSB) interview, ultimately leading to a distinguished career in the Indian Armed Forces.
Key Highlights 2026
| Feature | Details |
|---|---|
| Exam Name | NDA & NA Examination |
| Conducting Body | Union Public Service Commission (UPSC) |
| Mode of Exam | Offline (Pen and Paper) |
| Question Type | Objective (MCQs) |
| Frequency | Twice a Year |
| Exam Stages | Written Examination & SSB Interview |
| Language | Hindi and English |
Syllabus 2026
The NDA written exam consists of two papers: Mathematics and General Ability Test (GAT). A deep understanding of the syllabus is mandatory for success.
Mathematics
| Topic | Key Focus Areas |
|---|---|
| Algebra | Sets, Matrices, Determinants, Quadratic Equations |
| Calculus | Differential Calculus, Integral Calculus, Applications |
| Trigonometry | Ratios, Properties of Triangles, Inverse functions |
| Vector Algebra | Dot and Cross Product, Applications |
| Statistics & Probability | Frequency distributions, Mean, Median, Mode, Probability theory |
General Ability Test (GAT)
| Part | Subject | Key Focus |
|---|---|---|
| Part A | English | Grammar, Vocabulary, Comprehension, Usage |
| Part B | Physics | Mechanics, Heat, Waves, Electricity, Optics |
| Part B | Chemistry | Atomic Structure, Chemical Bonds, Acids/Bases |
| Part B | General Science | Basics of Biology, Ecology, Environment |
| Part B | History/Polity | Indian Freedom Movement, Constitution, Governance |
| Part B | Geography | Physical, Economic, and World Geography |
| Part B | Current Affairs | National/International events, Defence news |
Exam Pattern
The structure of the exam is designed to test both depth of knowledge and speed. You can practice free mock tests for Defence on Exam Bhai to simulate the actual pressure of this pattern.
| Paper | Subject | Duration | Total Marks |
|---|---|---|---|
| Paper I | Mathematics | 2.5 Hours | 300 |
| Paper II | General Ability Test | 2.5 Hours | 600 |
| Total | - | - | 900 |
Note: There is a negative marking of 1/3 of the marks assigned to each question for incorrect answers.
Eligibility Criteria
As per the official guidelines published on the UPSC official portal, candidates must meet the following requirements:
- Nationality: Citizen of India, subject of Nepal/Bhutan, or Tibetan refugee who settled in India before 1962.
- Age Limit: Candidates must be unmarried males or females aged between 16.5 and 19.5 years as of the start of the course.
- Educational Qualification:
- For Army Wing: 12th pass (any stream).
- For Air Force and Navy: 12th pass with Physics, Chemistry, and Mathematics.
Application Process
- Notification: UPSC releases the official notification on the UPSC website.
- Registration: Candidates must register via the One-Time Registration (OTR) platform.
- Form Filling: Log in, select the NDA exam, and fill in personal/educational details.
- Fee Payment: Pay the application fee (exempted for SC/ST/Sons of JCOs/NCOs/ORs).
- Center Selection: Choose your preferred exam city.
- Final Submission: Print the application form for future reference.
Preparation Strategy
We at Exam Bhai have observed that successful candidates follow a disciplined approach:
- Master the Basics: Start by reviewing NCERT textbooks from class 9th to 12th, especially for Science and Social Studies.
- Practice Frequently: You should attempt previous year papers and mock assessments for Defence on Exam Bhai to track your progress.
- Time Management: Since the GAT paper is lengthy, prioritize sections where you are strongest. Do not spend more than 40 seconds on a single question.
- Current Affairs: Stay updated with the last 6 months of national and defence-related news.
- Revision: Consistent revision of formulas and vocabulary is the key to retention. Use our comprehensive study guides for Defence on Exam Bhai to structure your daily learning.
Cut-Off Trends
Cut-off marks fluctuate based on the difficulty level of the paper and the number of vacancies. According to historical data available on upsc.gov.in, the qualifying score for the written exam typically ranges between 340 to 365 out of 900. However, this only allows you to proceed to the SSB. Aim for at least 400+ to ensure a safer margin for the final merit list.
Frequently Asked Questions
Q1: How can I download the official NDA sample paper PDF? A: While UPSC does not release specific 'sample papers' annually, you should download previous year question papers directly from the UPSC website or utilize our curated mock PDFs on Exam Bhai.
Q2: Is the NDA exam difficult to crack? A: With a structured plan and consistent practice, it is very achievable. The difficulty lies in the competition level, not the complexity of the syllabus.
Q3: Is there a negative marking in the exam? A: Yes, the UPSC imposes a penalty of 1/3 of the marks for every incorrect answer marked in both the Mathematics and GAT sections.
Q4: Can a student in class 12th apply for the NDA exam? A: Yes, students appearing for their 12th-grade board exams are eligible to apply, provided they pass the exam by the specified deadline.
Q5: How many times can I attempt the NDA exam? A: There is no limit on the number of attempts; you can appear as long as you meet the age and educational criteria.
Q6: Does the answer key help in actual preparation? A: Absolutely. An answer key with detailed explanations helps you identify your conceptual gaps and teaches you the 'why' behind the correct answer, which is vital for long-term retention.
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