Hello Aspirant,

As per the eligibility to apply for NDA, You should be passed 10+2 for the Army Wing or the National Defence Academy and 10+2 with Mathematics and Physics for Air Force and Naval Wings of National Defence Academy and for the (10+2 Cadet Entry Scheme) at the Indian Naval Academy.

There is no any minimum required percentage to apply for NDA. To check the further eligibility you can go through with the given below link.

https://competition.careers360.com/articles/nda-eligibility-criteria

Good Luck!