How much should I score (percentile and marks) to get top nit (mechanical) in other state and in obc ncl?

Hey there hope you're doing well.
To get admission into top NITs like NIT TRICHY , WARANGAL , SURATHKAL. or ROURKELA and that too in OBC category your category rank must be within 2k to 3.5 or 4k . Talking about marks it cannot be told exactly you need to pull all your efforts to score good percentile. Previous years cutoff for OBC was 74 which fetched cat. rank 9k or similar. So strategies accordingly.
Thank you hope this helps you!