Dear Aspirant,

It will be more good if you can tell us for which application form you talking about but in every defense form the most common thing they need is your high school marksheet, your 12th marksheet, your caste category certificate if you have, your Adhar card, an NCC certificate only if you have ( there is no compulsation ) and for graduation entries they also ask for your degree. And if you have tattoo in your body then they might ask you for that certificate also, I think these things are enough if you are applying for any defense exam.

Best Of Luck!!!