Dear aspirant, 

I'm providing you the link in which you can get each and every information regarding the cutoff or opening and closing ranks of various Nit's for all the branches.

Just go through this link and revert back if you still have doubts. 

https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches/amp

All the best for your next journey..!!