Hi aspirant,

According to the current eligibility criteria set up by UPSC, the body which conducts the NDA examination candidates between age limit of 16.5 to 19.5 years,(July 2, 2005, to July 1, 2002 ) can apply online for the National Defense Academy (NDA) & Naval Academy (NA) 2022 exam. Also they need to have completed intermediate or must be an appearing candidate. So following that your first attempt would be NDA2 2023 and the final will be NDA 2 2025. It means you can give 5 attempts for the same.

Hope it helps!!