Hi there

The candidates must have passed class 12 with Physics and Mathematics conducted by State Education Board/ University.

Candidates appearing in Class 12 or equivalent examination are also eligible to apply for NDA 2019.

You need to have physics and mathematics clearance in 12th. 

For full eligibility criteria (education qualifications, nationality, physical), visit the link below:

https://www.google.com/amp/s/competition.careers360.com/articles/nda-eligibility-criteria/amp

Hope this helps. Good luck!