Hello Aspirant,


After class 12th there is Only one way to join Indian Air Force and that is by joining National Defence Acadamy (NDA) by taking the exam conducted by  Union Public Service Commission (UPSC). This exam is conducted twice a year in all major cities throughout India. Educational Qualifications  needed is 10+2 with Physics and Mathematics. Appearing final year students can also eligible to apply.

I hope this helps.