Hello Garima,
Well, It depends on what category you belong to and also whether you are a Delhi or a non-delhi candidate. Another thing, When it comes to getting addmission on the basis of 12th percentage (Merit List- list with Decreasing order of percentage) it becomes really uncertain. As in, it purely depends on the total number of students who have registered themselves by filling the form and what percentage they have got. There are separate lists according to category and the criteria of Delhi or Non-Delhi. The percentage is either or PCM or PCB or whichever is higher in case of students who have studied both maths and biology in +2.
Talking about whether you will get admission or not, it is quite tough for you as in 2017 the cut off for B.P.T for delhi students was 84 % and for non delhin ones it was 91.66% .
Good luck.
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