Aniket, This is the first time that AIIMS is conducting admission to all of its branches across India to its MBBS courses through NEET score. And all the approximate 1400 MBBS seats will be filled through All India Counselling.  Now AIIMS exam pattern and marking scheme are different from than that of NEET. While AIIMS MBBS was conducted for 200 marks and also included English and GK sections while NEET is conducted for 720 marks and only in Physics, Chemistry and Biology. Now AIIMS releases its results in the form of percentiles while NEET releases its score in the form of marks.  We do not have specific 2019 data for AIIMS Rishikesh. But in 2018 under General Category, 99.79 was the cut off percentile. This is more than 650. But again this is 2018 data and cut offs change every year. 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. So you need to target more than 650. And if you are preparing for NEET, you may as well try our NEET Knockout package: https://learn.careers360.com/knockout-neet-may/ . And because you have 34 more days to prepare for NEET, you may as well use this opportunity