First of looking for a nit at this percentage is quite hard . As your percentile satisfies teg NIT criteria for ST category but you need at least 75%  in 12th board to  get NIT college. But don't worry you can still attend counselling there might be a little chance of getting NIT . So, be positive. https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer Or you can check a colleges that suit you at our college predictor link.