Yes,you may get a seat in NIT Durgapur according to the previous year statistics and considering your quota.

But it also depends on where you have given the class 12 exam.If you have given your board exams in Bengal,then definitely you have higher chances of getting a seat in NIT Durgapur 

Metallurgical,Biotechnology,Civil and Chemical have very high probality rate.Electrical have pretty chances but getting into CSE and ECE is quite difficult.

The trends for IISET shibpur is alnost similiar but more relaxing than NIT Durgapur.Again here CSE and ECE is quite difficult.

Hi

The seat allotment is done using All India CRL ranks.

So I'll mention the ranks accordingly. These are last year cut offs and for last round.

COLLEGE                                        RANK

IIEST                                             25269(HS)

                                                     5933(OS)

NIT Durgapur                                 19569(CSE)(HS)

                                                     2653(CSE)(OS)