Hey!

According to the NDA Eligibility criteria for NDA Examinations:

For Army wing- The candidate must have passed 10+2 from any recognized board or university.

For Air force and Naval wings- The candidate must have passed 10+2 from any recognized board or university with physics and mathematics as main subjects.

Please visit the below mentioned link for further details about the eligibility criteria:

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

Hope this answer helps!