Hi aspirant. To apply for NEET entrance exam, candidates must score the following percentage in their class 12 boards, according to their category-

General- 50%

OBC/SC/ST- 40%

PWD- 45%

As you belong to the ST category, you have scored above the qualifying marks and can apply and sit for the NEET exam. Also, you must note that admission in colleges is purely on the basis of marks and rank scored in the exam and not on the basis of board percentage. If you have a great rank, you can apply to Maulana Azad Medical College through All India Centralised Counselling. All the best for your preparation!