The NDA 2 2026 examination was conducted on 13 September 2026 for candidates preparing to join the National Defence Academy and Naval Academy. After completing the examination, the next thing most aspirants want to know is their expected score.
The NDA 2 2026 Mathematics Answer Key allows candidates to compare their attempted answers with the expected correct answers and calculate their probable marks before the official result is announced.
Brigadier Defence Academy provides the Mathematics answer key for all four sets — A, B, C and D.
NDA 2 2026 Mathematics Answer Key – Overview
The Mathematics paper is an important part of the NDA written examination. After the exam, candidates can use the provisional answer key to review their responses and understand their overall performance.
The answer key covers:
- Set A
- Set B
- Set C
- Set D
Candidates should carefully check the set they attempted in the examination before matching their answers.
NDA 2 2026 Mathematics Answer Key – All Sets
Candidates can check the Mathematics answer key for Sets A, B, C and D from the PDF provided below.
NDA 2 2026 Mathematics Answer Key PDF:
download PDF File
The PDF can be used to check the answers question by question. Candidates should compare the answers with their recorded responses and keep track of their correct and incorrect attempts.
Make sure you are checking the answer key for the same question paper set that you attempted. Using a different set may result in an incorrect score calculation.
How to Calculate Your NDA 2 2026 Mathematics Score?
After checking the answer key, candidates can calculate their probable Mathematics score according to the NDA marking scheme.
For the Mathematics paper:
- Correct answer: +2.5 marks
- Incorrect answer: approximately -0.83 marks
- Unattempted question: 0 marks
The estimated score can be calculated using:
Estimated Score = (Number of Correct Answers × 2.5) – (Number of Incorrect Answers × 0.83)
For example, if a candidate has 80 correct answers and 20 incorrect answers:
80 × 2.5 = 200 marks
20 × 0.83 = 16.6 marks
The estimated score would be approximately 183.4 marks.
This calculation is only for reference. The final score will be based on the official evaluation.
Why Check the NDA 2 2026 Mathematics Answer Key?
The answer key helps candidates understand their performance shortly after the examination.
By checking the answer key, candidates can:
- Calculate their probable Mathematics score.
- Check their correct and incorrect answers.
- Review questions they were unsure about.
- Identify mistakes made during the examination.
- Understand their overall performance.
- Get an approximate idea of where they stand before the result.
It can also help candidates analyse their preparation and understand which areas need more attention if they plan to appear for another NDA examination.
NDA 2 2026 Mathematics Answer Key and Expected Score
After calculating their probable marks, candidates may want to compare their score with the expected NDA cut-off.
However, unofficial cut-off predictions should not be considered final. The actual cut-off can vary depending on the examination and candidate performance.
Therefore, the score calculated through the answer key should only be used as an estimate. Candidates should wait for the official result and cut-off released by UPSC for confirmation.
What Should Candidates Do After Checking the Answer Key?
Once you have checked your answers and calculated your probable score, review your performance calmly.
If you are satisfied with your performance, you can continue preparing for the next stage while waiting for the result. If your score is lower than expected, go through the questions you got wrong and understand where you lost marks.
This analysis can help you avoid repeating the same mistakes in your next examination.
For aspirants planning their future NDA preparation, finding the Best Defence Academy in Dehradun can also be an important decision. Comparing teaching support, practice tests, study material and overall preparation approach can help students choose the right guidance for their goals.
Important Points to Remember
Before finalising your estimated score, keep these points in mind:
- Check the answer key for your actual examination set.
- Match your answers carefully.
- Count correct and incorrect responses separately.
- Apply the negative marking while calculating your score.
- Treat the calculated marks as an estimate.
- Do not consider an unofficial answer key as the final result.
- Wait for the official UPSC result and cut-off for confirmation.
Final Words
The NDA 2 2026 Mathematics Answer Key is useful for candidates who want to evaluate their performance after the examination. With answers available for Sets A, B, C and D, aspirants can compare their responses, calculate their probable marks and get an early idea of their performance.
However, the answer key should be used only as a reference until the official result is announced.
Check your answers carefully, calculate your estimated score and use the analysis to plan your next step in the NDA preparation journey with Brigadier Defence Academy.