Considering your OBC rank, you will get some of the branches in Jadavpur university itself. You can opt for other branches in other government colleges accepting WBJEE scores. Some of the top government colleges are Jadavpur University,Maulana Abul Kalam Azad University of Technology,Kalyani Government Engineering College,Jalpaiguri Government Engineering College etc.

You can see opening and closing ranks at some of the top colleges under WBJEE  : https://collegedunia.com/exams/wbjee/cutoff 

Hope this helps.

Thank you.