You can check the eligibility criteria of NDA from the given below link

Army Wing: Candidates applying for Indian Army must have passed class 12/HSC in 10+2 pattern of School Education or equivalent examination conducted by a State Education Board or a University

Air Force, Navy and Naval Academy: Candidates applying for Air Force, Navy and Naval Academy must have passed class 12/HSC in 10+2 pattern of School Education with Physics and Mathematics conducted by a State Education Board or a University

Good Luck!!