I am getting 515 marks in neet 2021 is there is any chance of getting any mbbs government college with obc category from AIQ or state quota from Bihar

Hello aspirant
Hope you are doing well
It is difficult to predict the cut off marks or ranks but according to previous year trends your expected rank would lie between85234 - 102384 but it may vary every year depending on the following factors
1. Level of question paper
2. Total no of candidates
3. Category of candidate
4. Total no of seats
5. Marks obtained by students
Here is the link for the expected ranks
According to the cut off trends the cut off for various colleges are
1. Indira Gandhi Institute of Medical Sciences, Patna - 605 marks
2. Jawaharlal Nehru Medical College, Bhagalpur -589 marks
3. Government Medical College, Bettiah - 575 marks
4. Patna Medical College, Patna - 615 marks
So you dont have a chance to get seats in govt medical College
You can visit the given link to check previous year cut offs
https://medicine.careers360.com/articles/neet-cutoff-bihar
Further you can use college predictor tool to know about the colleges you can get

Further if you want to pursue Medical as a career so you can take drop and get Good marks next year
Good luck
Hope it helps