In 2019, the cut off for OBC was 95.20%. Now AIIMS conducted its exam for 200 marks while NEET has its exam for 720 marks. AIIMS releases its results in the form of percentiles while NTA releases NEET results in the form of Score. There is no slight comparision as how to figure out the marks required for AIIMS. But AIIMS will conduct admission to all of its branches through All India Counselling. As this is still the pilot year for this process, we need to wait until counselling to see how things pan out. But to be on a safer side, you will need atleast 675-700 for a seat in AIIMS. This is an assumption considering AIIMS's reputation and cut offs for AIQ Counseling. Now cut offs change every year and are dependant on various factors such as no.of Candidates appearing for the exam, no,of Candidates qualified, top NEET score and difficulty of the exam. For any guidance during counselling and admission, you can use our MBBS Companion: https://www.careers360.com/mbbs-companion