This is the first time that AIIMS is conducting admission to MBBS through NEET score through All India Counselling and so it is difficult to prediict. But rank of 2000 is approximately a score of 639-631. And you haven't mentioned your Category. Nevertheless, you might get a seat in:

• AIIMS, Patna
• AIIMS Jhodhpur
• AIIMS Bhopal

For a complete list of colleges that you may have a shot at, please use our College predictor: https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer