Engineering in Kolkata

Look, if you belong to a higher middle class family, then undoubtedly choose Heritage. You should know. Except IIT and NIT of Bihar, no other colleges are good. IIT Patna, NIT Patna, Bhagalpur Engineering College, Muzaffarpur institute of technology and Darbhanga Engineering Eollege.
One point to be consider: the fee structure.
Colleges that come under BCECE have a very low fee (only 18,875 for four years) means "B.Tech degree for free". I put Bhagalpur before BIT because of fees and infrastructure. The placements of Bhagalpur, Muzaffarpur and darbhanga colleges are not good. Majority of students prepare for GATE, CAT and UPSC. Almost 40% students qualify for government jobs every year. (In case of core Branches)
The only thing that I found good in these BCECE colleges is that, you have nothing to lose (lakhs of). If you really have capacity and talent then "water finds its own way" and placements don't matter anymore.