hey candidate 

medical college have eligibility criteria as their neet cut off and candidate must score aggregate of 50% in PCB/biotechnology in class 12th. if your overall class 12th precentage in marksheet is 50.88% then only you are eligible for mbbs. if your marksheet is showing 49.80% then you are not eligible for mbbs. medical colleges calculate percentage according to marks in your marksheet.

goodluck