Hi Nischal, the cutoff varies every year based on various factors like number of seats available number of test takers difficulty level of exams category of student etc. Please tell me you belong to which department so that it could be helpful to guide through which NIT. 

Hii

Dear Its hard to say as because  there are lot many factors depends on your caste ,specially aged while even your graduation percentage  as well, so i would like to suggest you to check our tool for PSU & Colleges , kindly refer the below link  which gives you both PSU and Colleges as well

Https://engineering.careers360.com/gate-college-predictor?icn=GATE-clgpd&ici=clevertap-exit-intent

The while i would also like suggest to go through the previous year cut off as well

Https://engineering.careers360.com/articles/gate-cutoff-for-iits

Regards