Hello Srija Banerjee,

These are some of the best colleges for MBA  in Kolkata through MAT Entrance Test-

• Indian Institute  of Social Welfare and Buisness Management,Kolkata
• Bhartiya Vidhya Bhavan of Management Science ,Kolkata
• IBS Buisness School,Kolkata
• NSHM Knowledge Campus,Kolkata
• Institute of Engineering and Management  Technology

You can also visit this link of Career360 regarding it-

https://bschool.careers360.com/colleges/list-of-mba-colleges-in-kolkata-accepting-mat?sort_filter=parameter

Thank You.

Hope it was helpful.