The NDA final merit batch is determined by a cumulative score of 1800 marks: 900 from the UPSC-conducted written examination and 900 from the Services Selection Board (SSB) interview. Candidates must clear the minimum qualifying threshold in both segments to be considered for final merit-based induction into the academy.
What is the Exam?
The National Defence Academy (NDA) examination is a prestigious, biannual competitive exam conducted by the Union Public Service Commission (UPSC). It serves as the primary gateway for young aspirants to join the Indian Army, Navy, and Air Force. The selection process is uniquely designed to evaluate not just academic proficiency, but also the physical, mental, and leadership potential—collectively known as Officer Like Qualities (OLQs)—of candidates aged between 16.5 and 19.5 years.
Key Highlights 2026
- Conducting Body: Union Public Service Commission (UPSC).
- Exam Mode: Offline (Pen and Paper).
- Total Stages: Two-stage selection (Written Exam + SSB Interview).
- Total Marks: 1800 (900 for Written, 900 for SSB).
- Eligibility: Unmarried male and female Indian citizens.
- Official Website: upsc.gov.in
Syllabus 2026
The written examination is divided into two papers. The Mathematics paper evaluates your conceptual strength, while the General Ability Test (GAT) measures your awareness and linguistic capability.
| Paper | Subject | Topics | Marks |
|---|---|---|---|
| Paper I | Mathematics | Algebra, Calculus, Matrices, Trigonometry, Vectors, Statistics | 300 |
| Paper II | GAT Part A | English (Grammar, Vocabulary, Comprehension) | 200 |
| Paper II | GAT Part B | Physics, Chemistry, Biology, History, Geography, Current Affairs | 400 |
Exam Pattern
Understanding the weightage is vital for strategic preparation. We at Exam Bhai suggest you practice free mock tests for Defence on Exam Bhai to acclimatize yourself to the pressure of the 2.5-hour duration per paper.
| Feature | Mathematics | General Ability Test |
|---|---|---|
| Duration | 2.5 Hours | 2.5 Hours |
| Total Questions | 120 | 150 |
| Max Marks | 300 | 600 |
| Correct Answer | +2.5 | +4.0 |
| Wrong Answer | -0.83 | -1.33 |
Eligibility Criteria
As per official guidelines from upsc.gov.in, candidates must meet the following criteria to proceed to the final merit batch:
- Age: 16.5 to 19.5 years at the commencement of the course.
- Educational Qualification: 12th pass (any stream for Army; Physics and Mathematics for Air Force/Navy).
- Marital Status: Unmarried.
- Nationality: Indian, or subject of Nepal/Bhutan, or Tibetan refugees who came to India before 1962 with the intention of settling.
Application Process
- Visit the official UPSC portal at upsc.gov.in.
- Complete the One-Time Registration (OTR).
- Fill in the detailed application form for the specific NDA session.
- Pay the requisite fee (exempted for female/SC/ST candidates).
- Download the admit card once released, usually three weeks before the exam.
Preparation Strategy
Success in the NDA requires a balanced approach. Because the SSB carries 900 marks—equal to the entire written exam—your personality development is as crucial as your bookish knowledge.
- Build a Foundation: Since the math syllabus is based on classes 11 and 12, ensure your NCERT concepts are crystal clear.
- Consistency: You can access subject-wise previous year papers for Defence on Exam Bhai to identify high-weightage topics like Calculus and Algebra.
- SSB Prep: Develop a daily habit of reading newspapers to stay updated on geopolitical issues, which is critical for the GTO and Interview tasks.
- Time Management: Use our personalized performance analytics for Defence on Exam Bhai to track your speed and accuracy in mock tests.
Cut-Off Trends
Cut-offs are determined by the UPSC based on the difficulty level of the paper and the number of vacancies. Historically, the aggregate cut-off for the written exam typically ranges between 330–360 marks out of 900. You can verify these trends at upsc.gov.in. Remember, these are only the qualifying marks; the final merit list, which determines your selection, is significantly higher.
Frequently Asked Questions
Q1: How is the final merit list prepared? A: It is based on the total aggregate score secured in the written examination and the SSB interview. Candidates must clear individual subject cut-offs and the SSB minimum standards to be listed.
Q2: Are marks for the SSB interview included? A: Yes, the SSB interview accounts for 900 marks, contributing 50% to the total 1800-mark evaluation.
Q3: Can I choose my service branch? A: Yes, you provide preferences for Army, Navy, or Air Force. Allocation is based on merit, medical fitness, and your stated preferences.
Q4: Is there a minimum percentage required in class 12? A: No, the UPSC does not mandate a specific percentage, provided you have passed the qualifying exam.
Q5: What happens if I clear the written exam but fail the medical? A: Medical fitness is mandatory. If you are declared 'Unfit' by the Board of Service Medical Officers, you cannot be part of the final merit list.
Q6: Is negative marking applicable? A: Yes, there is a penalty of one-third of the marks assigned to a question for every incorrect answer in both the Mathematics and GAT papers.
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