You haven't mentioned for which course you are asking for. Based on your previous queries, I am listing you best colleges for BBA course in Kolkata-

• Institute of Engineering and Management - Top college under Maulana Abul Kalam Azad University of Technology. Placements are pretty good here.
• Bhartiya Vidya Bhavan Institute of Management Science
• University of Engineering and Management
• Brainware University - UEM is a private autonomous university, placements are quite impressive.
• Techno India University
• Adamas University - Among top rated private universities. Almost 85% students get placed in reputed companies.
• The Neotia University
• Amity Global Business School
• NSHM Knowledge Campus

and a lot more colleges and universities are there in Kolkata that offer BBA in under graduation. But only few are considered as best based on their academics, education quality, placement and infrastructure.