Nation’s Biggest NDA Mock Test 2025 Maths & GAT Answer Key

Centurion Defence Academy conducted the Nation’s Biggest NDA Mock Test 2025 successfully on 7th September 2025, and the response was really motivating. There were thousands of NDA aspirants from across the country who participated in this mock test, making it a grand success. The test was designed to give students the real feel of the NDA exam and also to help them check where they stand in their preparation journey.

In this article, we’ll share the Maths and GAT Answer Key of the mock test along with some useful insights. If you attempted the paper, this will assist you in evaluating your performance and noting any mistakes you made.

Why was this mock test special?

It was nationwide and open to all NDA aspirants.
The test followed the exact NDA exam pattern in all aspects, including Mathematics and GAT sections.
Just like the real exam, the level of difficulty was well-distributed across easy, moderate, and tough questions to ensure all students experience a balanced paper.
Most importantly, students got a chance to test themselves against thousands of serious competitors, just like in the actual NDA exam.

NDA Mock Test 2025 – Maths Answer Key

The Maths section carried 120 questions for 300 marks. The questions were on the topics all Students know, such as Algebra, Trigonometry, Calculus, Probability, Statistics and Geometry.

Here’s the Maths Answer Key (Set-wise) released by Centurion Defence Academy:

Set A – [Answer Key PDF Link]
Set B – [Answer Key PDF Link]
Set C – [Answer Key PDF Link]
Set D – [Answer Key PDF Link]

Students can match their responses and calculate their expected scores. Just to remind you, you get +2.5 marks for every correct answer and -0.83 marks for every incorrect answer.

NDA Mock Test 2025 – GAT Answer Key

The GAT section had 150 questions for 600 marks. It covered English, General Knowledge, Science, History, Polity, Geography, and Current Affairs.

Here’s the GAT Answer Key (Set-wise):

Set A – [Answer Key PDF Link]
Set B – [Answer Key PDF Link]
Set C – [Answer Key PDF Link]
Set D – [Answer Key PDF Link]

Marking scheme: +4 marks for correct answers, -1.33 marks for wrong answers.

How to Use the Answer Key?

Check your responses with the provided answer key.
Apply the marking scheme to compute your raw score.
Compare your score with the expected cut-off range.
Make a note of weaker areas and practice more questions to strengthen your grip.

What Students Said After the Test

Many participants stated that the mock test was similar to a practice test for the real NDA exam. Many of the students enjoyed the time and competitive atmosphere with serious aspirants from around India. Many participants found the test to be a confidence builder.

Road Ahead for Aspirants

The Nation’s Biggest NDA Mock Test 2025 by Centurion Defence Academy was more than just an exam; it was an opportunity to measure preparation, improve performance, and boost confidence before the actual NDA exam.

Now that the Maths & GAT Answer Keys are out, students are advised to carefully analyse their mistakes and gear up for the final exam with more focus.

The most important factors that contribute to achieving success in the NDA, or anywhere else, are practice and consistency. And with initiatives like this, Centurion Defence Academy is doing what it always has – helping aspirants take the next steps in achieving their dream of wearing the uniform.