Dear Aspirant

Hope you are doing well

You can fill the form of air force and navy

For Air Force and Naval Wings of National Defence Academy and the 10+2 Cadet Entry Scheme at the Indian Naval Academy.

12th Class passes of the 10+2 pattern of School Education or equivalent with Physics and Mathematics conducted by a State Education Board or a University or

Must have passed 3 years Diploma Course in Engineering in any stream, with 50% marks in aggregate and 50% marks in English

note -there is some vacancies which require graduations with recognized university vacancy like iaf afcat

you can fill the form as much as time you full its criteria like age 20-24

If you want to crack it then checkout the link given in below https://www.google.com/amp/s/www.careers360.com/articles/Universities/How-to-join-Indian-Army-Navy-Air-Force/amp