Yes, you can apply for NDA. It  is not simply in applying after getting eligibility marks for entrance exam. There are two rounds of selection NDA1 and NDA2. The maximum marks depend on existing competition of students who appear that year. Meet someone who had already appeared and try to gather what are all required to bullshot in examination in both the rounds. Always check yourself with old question papers and necessary fitness in body.

Hello Bhavesh,

The exam conducting body has not prescribed any minimum percentage marks in class 12th to apply for NDA. However, if you must have passed class 12 with Physics and Mathematics conducted by State Education Board/ University or even if you are appearing in Class 12 or equivalent examination then you are eligible to apply for NDA. 

For more details on NDA Eligibility Criteria - Click Here 

Hope this helps!