AIIMS has the lowest fees. It is approximately 8,000Rs. And regarding the score for AIIMS, it depends on your Category. From this year, admission to AIIMS will happen through NEET score. And if you belong to General Category, you will need more than 650 and if you belong to Reserved Categories, you will need more than 600. Now this is after Round 1 of All India Counseling on NEET 2020 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. If you want to appear for NEET 2021, you can prepare with the help of our NEET Knockout package: https://learn.careers360.com/knockout-neet-may/