Koshish covers the NDA Written + SSB stage of the National Defence Academy & Naval Academy (NDA & NA) today. Practice is built around Mathematics and General Ability Test (GAT), with negative marking scored the way the exam applies it. The sections below set out what is in the bank and what is not yet added.
These subjects are live in the question bank and can be practised today. "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
General Ability Test (GAT)
Scoring follows the exam's own negative marking, so a score here tracks exam performance more closely than untimed quizzes that do not penalise wrong answers.
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
Stated explicitly so nothing here reads as a promise the product cannot keep.
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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