AFMC is 'ARMED FORCES MEDICAL COLLEGE' Which is one of the top medical colleges in India and so with the higher cut off . You will get a call from AFMC if you have registered for it and if you have scored above cut off marks . And then you will again have to appear for the test conducted by AFMC itself along with interview and also some physical and medical tests . If you qualify this tests also then you will get admission in AFMC. You will also have to serve for army for 7 years after completing MBBS . And if you don't want to do that then you will have to pay some bond money around 30 lakhs to them.
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