This is the first time that AIIMS is conducting its admissions through NEET score. And admission to AIIMS for Delhi and all its branches will be conducted through All India Counselling. Now all this while, AIIMS conducted its own exam and the total marks was for 200 while NEET is for 720. While AIIMS released its results in the form of percentiles, NEET releases its results in the form of marks. And unlike NEET which has only Physics, Chemistry and Biology, AIIMS had GK and English sections. And usually AIIMS has cut offs above 98.75 for General Category, 97 for OBC and 94 for SC/ST . Now if we roughly translate that  out of 720, it is approximately 675-700 for General Category, 625 for OBC and 575-600 for SC/ST. Now there are approximately 1500 MBBS seats available for AIIMS. And you haven't mentioned your Category. So if you belong to General Category, you will need 650 and more. And for reserved Categories, you will need 600 and more again depending on the branch of AIIMS. But we have to tell you that Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam.