Hello student yes you're eligible to appear in NDA examination for Air force.

As eligibility criteria says minimum education qualification is 10+2 with Physics and Mathematics, there's no minimum passing percentage criteria in NDA.

Candidates should be between the age of 16.5 to 19.5 years old.

Only unmarried male Candidates are eligible to appear in NDA examination.

For more details refer to the link mentioned below - https://www.google.com/amp/s/competition.careers360.com/articles/nda-eligibility-criteria/amp

Feel free to comment if you've any doubt

Good luck