Hello rahul, 

The home state cut off for chemical engineering in NIT Durgapur 2017 was around 26 thousand rank then you can get admission in it. But the cut off for all india student was around 8000 rank. To check rest of the NIT cut offs them go to the below link it will help you-

https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits?amp