Eligibility for the Combined Defence Services Examination (CDS) 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 CDS 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.
English grammatical error detection and comprehension practice
Elementary Mathematics speed drilling across arithmetic and mensuration
General Knowledge conceptual questions aligned with UPSC trends
FSRS revision scheduling for defence current affairs
Worth knowing before you plan your preparation timeline.
5-Day SSB interview psychology and GTO tasks are outside digital testing scope.
Pilot Aptitude Battery Test (PABT/CPSS) is conducted at Air Force Selection Boards.
Questions
Graduation degree in any discipline for IMA/OTA; Engineering for INA; Degree with Physics & Math or B.E. for AFA.
1/3rd penalty: -0.27 marks in English and GK, -0.33 marks in Elementary Mathematics.
UPSC mandates a minimum of 20% marks in each individual paper.
Reviewed by Koshish Editorial — Defence Desk (CDS)
Content updated 2026-10-08
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