Eligibility for the National Defence Academy & Naval Academy (NDA & NA) is set by the conducting body, not by Koshish, and it changes between notifications — check the official notification for the criteria that apply to your attempt. This page covers what happens on Koshish once you are eligible to apply.
The NDA Written + SSB stage is what Koshish prepares for. "Verified" here means a question has passed our review pipeline and can be served in the app right now; anything shown as verified is counted from that servable set.
Mathematics formula retrieval drills across Algebra, Trigonometry, and Calculus
English & General Ability Test (GAT) scenario-based practice
Negative marking penalty calibration (-0.83 on Maths, -1.33 on GAT)
FSRS memory decay scheduling for Defence static GK & current affairs
Worth knowing before you plan your preparation timeline.
SSB interview stages are personality-based and not delivered as digital MCQs.
Physical and medical fitness parameters are evaluated at military boards.
Questions
16.5 to 19.5 years strictly. Candidates must be unmarried.
-0.83 marks in Mathematics (Code 01) and -1.33 marks in GAT (Code 02).
UPSC typically prescribes a minimum of 25% marks in each paper.
Reviewed by Koshish Editorial — Defence Desk (NDA)
Content updated 2026-10-08
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