Candidate has to qualify 12th from any school, college, university recognised by CBSE, ICSE, any STATE board or distance learning program. If you have done 12th from outside of India than fill the form as an NRI Candidate. After passing 12th class there is an Examination called NEET (National Eligibility cum Entrance Test). Yohave to apply for NEET Examination and qualify in there.

If you are speaking about management quota, then you need not apply and there's no procedure. You just gotta find someone who can help you out without charging heavy donation amounts.