Hi Prabhat, 

All institutions you mentioned dont have much difference between them, i can suggest you a few points on the besis of which you can select your college: 

• The fees should be affordable 
• The city should not be such that you cannot adjust to the lifestyle
• The branch you prefer is strong in that college
• The facilities provided by the institute is according to your needs

hope this helps. you can go to this link for more Jalpaiguri Government Engineering College, Jalpaiguri   Government College of Engineering and Leather Technology,Kolkata