hello Varalaxmi,

as I seen previous year qualifying marks for OBC category in CSE branch, it is about to 25. and your score this year is 28, so your chance of getting admission NITs college is less.

according to your marks, you can predict your college by predicting tool for GATE, click the link and fill required area-

https://engineering.careers360.com/gate-college-predictor

Thank You.