Hello dear student,
Don't worry for NDA there is no specific criteria of marks required.
For Army Wing of National Defence Academy: Pass certificate in 10+2 exams via recognized board or a University.
For Air Force and Naval Wings of National Defence Academy and for the 10+2 Cadet Entry Scheme at the Indian Naval Academy: Candidate should have passed Class 12th exam in the 10+2 pattern of School e ducation or equivalent with Physics and Mathematics conducted by a State Education Board or a University.
i hope this was helpful to you