NDA-1 exam conducted by UPSC was held on 12th April 2026. This was a very crucial date for all the aspirants who wanted to become an officer of our National Defence Academy and dedicate their life for service of our great nation. Hundreds of aspirants came forward to appear in this very crucial written examination.
This write-up is especially meant for all those readers who themselves appeared in NDA-1-2026 and are searching for the correct answer key of both Mathematics and GAT solution. You will be glad to note that you have reached the right destination. It is known to everyone that after every examination, aspirants try to find out how much they could score, and hence, a team of subject experts has come up with the fully verified answer key for all sets.
Quick Overview – What Was the NDA-1 2026 Exam Like?
The NDA written examination consists of only two big papers:
- Mathematics Paper: This paper assesses your knowledge of mathematics (topics of algebra, calculus, statistics, etc.).
- General Ability Test (GAT): This paper covers a wide range of subjects, including English, General Knowledge, Physics, Chemistry, History, Geography, and Current Affairs.
Where to Find NDA-1 2026 Answer Keys?
The complete answer key sets in PDF format have been provided here for easy downloading and checking of answers against your own work at home. The answer key sets have been prepared by expert teachers after thorough examination of the official question paper solutions.
Answer Key Link Will Update Soon
Mathematics Answer Keys
- Set A: [Download Maths Answer Key Set A]
- Set B: [Download Maths Answer Key Set B]
- Set C: [Download Maths Answer Key Set C]
- Set D: [Download Maths Answer Key Set D]
General Ability Test (GAT) Answer Keys
- Set A: [Download GAT Answer Key Set A]
- Set B: [Download GAT Answer Key Set B]
- Set C: [Download GAT Answer Key Set C]
- Set D: [Download GAT Answer Key Set D]
Why Should You Use These Answer Keys?
After putting in so much effort to prepare and appear for the NDA exam, you are probably wondering about your performance. Here is why using the answer keys now is very helpful:
1. Estimate Your Score Immediately: You will be able to see your expected scores in Maths and GAT right away. It also gives you a definite answer.
2. Identify Strengths and Weaknesses: You can see which question types or subjects you were stronger in, and which areas you need to work on, to figure out how to proceed.
3. Predict Cut-Off Chances: See how your results from this year compare to last year’s cut-off scores for NDA, and also how close you are to qualifying.
4. Plan Your SSB Interview Preparation: Do not wait for results; start SSB prep early to improve your chance of success.
What Happens After You Clear the NDA Written Exam?
Once you clear the NDA written exam, you will be called for the SSB interview, which is conducted at many SSB centres across India.
SSB interview is not only a personal interview; it consists of the following:
- Screening Tests: Basic aptitude and personality tests.
- Psychological Tests: These include assessment of your mental health, cognitive skills and also your officer-like traits.
- GTO (Group Testing Officer) Tasks: To evaluate your performance as a leader, in teamwork, and decision-making skills.
- Personal Interview: Where the panel looks into your communication skills and confidence, as well as overall suitability to be an officer.
Please note that NDA written exam qualifiers don’t ultimately guarantee your selection. Only combined, written, SSB, medical and physical fitness will qualify you for final selection.
Pro Tip – Don’t Wait, Start SSB Preparation Now
Many candidates make the mistake of waiting for the written exam results before starting their SSB preparation. Also, SSB is a very different kind of assessment.
- Begin working on your personality, communication, fitness, and decision-making skills right away.
- Try doing mock interviews and group discussions to feel more confident.
- Take a mock psychological test for better performance on the main event.
Final Thoughts – Stay Consistent and Focused
- Be consistent in your preparation process.
- Use the NDA-1 2026 answer keys to know how well you have performed, and accordingly plan your next course of action.
- Do not be slowed down by the waiting time; rather, work on your SSB preparation simultaneously.
- Consider your fitness and medical preparations, too.

