Even for a obc student the cutoff for NITs is below 25k and for core branches you need to score below 20k. So with this rank getting NIT would be difficult for you however you can easily get admission in private colleges of jee mains and that too in core branches. Else you might also get some lower branches in home state NITs.

You can predict what colleges you might get with this rank by going through the link of college predictor tool given below.

https://engineering.careers360.com/jee-main-college-predictor

Hope it helps.