Complete Guide to NDA negative marking scheme explained 2026

In the UPSC NDA examination, each incorrect answer carries a penalty of one-third (1/3) of the marks allotted to that specific question. Specifically, you lose 0.83 marks for every wrong answer in Mathematics and 1.33 marks in the General Ability Test (GAT). Unanswered questions result in zero deductions.

What is the Exam?

The National Defence Academy (NDA) examination is a prestigious national-level entrance test conducted by the Union Public Service Commission (UPSC) twice a year. It serves as the gateway for young aspirants to join the Indian Army, Navy, and Air Force wings of the NDA and the Indian Naval Academy. As expert exam strategists, we at Exam Bhai emphasize that this exam is not just about academic brilliance but about precision, speed, and strategic decision-making, especially given the stringent negative marking policy.

Key Highlights 2026

• Exam Mode: Offline (Pen and Paper).
• Total Written Marks: 900.
• Stages: Two-stage selection (Written Examination followed by SSB Interview).
• Negative Marking: Mandatory (1/3 of assigned marks per question).
• Eligibility: Unmarried male and female candidates (Age: 16.5–19.5 years).
• Official Source: All official notifications, syllabus updates, and result declarations are published exclusively on the UPSC official portal.

Syllabus 2026

The NDA syllabus is designed to test your core competency in academic subjects and general awareness.

Exam Pattern

The written exam is divided into two papers. To qualify for the SSB interview, you must clear the sectional cut-off (25% in each paper) and meet the overall aggregate.

Success in this high-stakes environment requires rigorous training. We recommend that you practice free mock tests for Defence on Exam Bhai to simulate the actual exam pressure and refine your accuracy.

Eligibility Criteria

According to the official UPSC guidelines, candidates must meet the following criteria:

• Age Limit: Candidates must be aged between 16.5 and 19.5 years. Refer to the specific UPSC notification for the exact date-of-birth window.
• Education: 12th-pass or appearing students. Army wing allows any stream; Navy and Air Force require Physics, Chemistry, and Mathematics (PCM).
• Nationality: Citizen of India, subject of Nepal/Bhutan, or specific categories of refugees/migrants as defined by the Government of India.

Application Process

1. Visit the official UPSC Online website.
2. Complete the One-Time Registration (OTR) process.
3. Fill out the application form for the specific NDA session (NDA 1 or NDA 2).
4. Pay the requisite fee (exempted for SC/ST and female candidates).
5. Download the submitted application receipt for future reference.

Preparation Strategy

We at Exam Bhai advocate for a precision-first approach to mitigate negative marking:

• Master the Basics: NCERT books are your foundation. Ensure conceptual clarity in Mathematics.
• Strategic Skipping: Do not attempt questions where you are unsure. Since there is no penalty for leaving a question blank, "skipping" is a valid tactical choice to protect your score.
• Simulated Practice: Use our Defence practice tests to train your brain to identify "trap" questions.
• Current Affairs: Stay consistent with daily news for the GK section, as this is the most dynamic part of the GAT paper.
• Revision Cycles: Dedicate 70% of your time to revision and 30% to learning new topics to ensure long-term retention.

Cut-Off Trends

Cut-offs are determined by the UPSC based on total vacancies and exam difficulty. Historically, the written exam cut-off typically ranges between 350 and 380 marks out of 900. You can track these trends by visiting the UPSC results archive after each exam cycle.

Frequently Asked Questions

1. Does every incorrect answer result in a deduction? Yes, every incorrect response in both the Mathematics and GAT papers attracts a negative mark of 1/3 of the weight of that question.

2. Is there a negative marking for unattempted questions? No, there is absolutely no penalty for leaving a question blank. It is better to skip a question than to guess blindly.

3. What is the minimum qualifying score per subject? Candidates must score at least 25% in both the Mathematics and GAT papers separately to be eligible for further selection.

4. How do I improve my accuracy to avoid negative marking? Practice is the only solution. Regularly taking full-length Defence mock tests helps you learn which questions to attempt and which to avoid.

5. Are the marks for Maths and GAT calculated differently? Yes, because the weightage per question is different (Maths: +2.5, GAT: +4.0), the negative marking values (-0.83 and -1.33 respectively) are calculated proportionally.

6. Where can I find the official syllabus for 2026? The official syllabus is released within the UPSC NDA notification PDF on the official UPSC website. Always rely on this document over unofficial sources.

Understanding the NDA negative marking strategy

This video provides a practical demonstration of how to manage your attempt rate to keep negative marking from impacting your final score.