How would you rank the following colleges: IEM Heritage Institute of Tech Kalyani and Jalpaiguri?

As I know some people from these institutes you mentioned above, it will be clearer to base their ideas upon the rankings on different factors. 

In terms of Academic Credentials and Research works:

• Kalyani Government Engineering College will be my first choice. It is a Government-run College bestowed with some great Professors.
• Heritage Institute of Technology will be 2nd, as it also has some of the most influential professors. It is an autonomous institute. 
• This will be followed by Jalpaiguri Government Engineering College.
• Finally, the Institute of Engineering and Management, as there have been reports of faculty shortage.

In terms of Social life and Co-curricular Activities:

• Heritage Institute of Technology tops this criteria. 
• Whereas, Kalyani Government Engineering College is in the 2nd position.
• Followed by Jalpaiguri Government Engineering College and IEM.

In terms of Locational merits and Infrastructure,

• Heritage has one of the best infrastructures and is apparently only 10 mins from the major junction of Ruby Hospital or Desun Square.
• IEM also has established both the criteria really well, yet it somehow gets difficult for South Kolkata students.
• They are followed by Kalyani Government Engineering College and Jalpaiguri Government Engineering College.

In terms of Placement Scenario,

• Institute of Engineering and Management and Heritage Institute of Technology are the same in terms of their placement drives.
• Followed by Kalyani Government Engineering College and Jalpaiguri Government Engineering College

In terms of Affordability: (Fees, Accommodation, Miscellaneous Expenses)

• Kalyani Government Engineering College
• Jalpaiguri Government Engineering College
• Institute of Engineering and Management and finally,
• Heritage Institute of Technology

Hope this layer to layer breakdown has helped you gain some insight about the question you asked.