The NDA 1 2026 Exam has been successfully conducted by UPSC, and candidates are now eagerly waiting to evaluate their performance. To help aspirants, Trishul Defence Academy has released the NDA 1 2026 Maths Answer Key for all sets (A, B, C, D).

With the help of this answer key, candidates can calculate their expected marks, analyze performance, and prepare for the next stage — the SSB Interview.

📥 Download NDA 1 2026 Maths Answer Key PDF

Candidates can download the set-wise NDA Maths Answer Key PDF from the links below:

👉 Download Set A Answer Key PDF
👉 Download Set B Answer Key PDF
👉 Download Set C Answer Key PDF
👉 Download Set D Answer Key PDF

👉 Direct Download Link:
https://www.trishuldefenceacademy.in/answerkey

📊 NDA 1 2026 Maths Exam Overview

• Exam Conducting Body: UPSC
• Exam Name: NDA 1 2026
• Paper: Mathematics
• Total Questions: 120
• Maximum Marks: 300
• Negative Marking: Yes (0.83 marks deducted per wrong answer)

How to Calculate Marks Using NDA Maths Answer Key

To calculate your expected score, use the formula below:

👉 Correct Answer = +2.5 Marks
👉 Wrong Answer = -0.83 Marks

Formula:
Score = (Correct Answers × 2.5) – (Wrong Answers × 0.83)

This will give you an approximate score before the official result is declared.

NDA 1 2026 Expected Cut-Off (Maths + GAT)

Based on previous trends, the expected cut-off for NDA 1 2026 is:

• Written Exam Cut-Off: 340 – 360 Marks
• Final Cut-Off: 700 – 720 Marks

👉 Note: Cut-off may vary based on difficulty level and number of candidates.

Why NDA Maths Answer Key is Important?

• ✔️ Helps in performance analysis
• ✔️ Predict your selection chances
• ✔️ Plan your SSB preparation
• ✔️ Identify weak areas

NDA 1 2026 Maths Question Paper Analysis

The Maths paper of NDA 1 2026 was:

• Moderate level overall
• Questions from Algebra, Trigonometry, Calculus, and Geometry
• Lengthy but doable with proper time management

👉 Candidates with strong fundamentals could score well in this paper.

NDA 1 2026 Answer Key Live Discussion

Join our expert faculty for detailed solution analysis and strategy:

👉 Watch Live Session:
https://youtube.com/live/LFGLB2oLMC8?feature=share

Also Check:

• NDA 1 2026 GAT Answer Key
• NDA 1 2026 Full Answer Key (All Papers)
• NDA 1 2026 Expected Cut-Off
• SSB Interview Preparation Guide

FAQs – NDA 1 2026 Maths Answer Key

Q1. Is NDA 1 2026 Maths Answer Key released?

Yes, the unofficial answer key has been released by coaching institutes like Trishul Defence Academy.

Q2. How can I download NDA Maths Answer Key PDF?

You can download the answer key from the official website:
https://www.trishuldefenceacademy.in/answerkey

Q3. Is there negative marking in NDA Maths?

Yes, 0.83 marks are deducted for each incorrect answer.

Q4. What is a good score in NDA Maths 2026?

A score of 120+ in Maths is considered good for clearing the written exam.

Q5. Can I rely on unofficial answer keys?

Yes, reputed institutes provide highly accurate answer keys, but final results depend on UPSC.

Conclusion

The NDA 1 2026 Maths Answer Key is an essential tool for every aspirant to evaluate performance and estimate scores. Candidates are advised to download the PDF, calculate their marks, and start preparing for the SSB Interview without delay.

Stay connected with Trishul Defence Academy for the latest updates, results, and defence exam preparation.