Hi Koushikee,

There is no such college in Kolkata which comes under UGAT-AIMA. Some of the top colleges which you can target for BBA are AIMS Institute of Higher Education at Karnataka, Alliance School of Business, Alliance University at Karnataka, Asian School of Business Management (ASBM), Odisha, Goa University, Goa. and Many more 

I hope I have cleared your doubt. Wish you good luck.