Hey,

These are the prominent colleges of Bba in Kolkata- 

Institute of Engineering and Management, [IEM] Kolkata

Bharatiya Vidya Bhavan Institute of Management Science, Kolkata

University of Engineering and Management, [UEM] Kolkata

Eminent College of Management and Technology, [ECMT] Kolkata

Brainware University, Kolkata

Deshbandhu College for Girls, [DCG] Kolkata

Netaji Subhash Engineering College, [NSEC] Kolkata

Advanced Institute of Modern Management and Technology, Kolkata

Hope this helps.