230/B , 3rd Floor, A J C Bose Road, , Kolkata - 700020, West Bengal, India
8/1, LAL Bazar Street, , Kolkata - 700001, West Bengal, India
AC 215, prafulla kanan east, keshtopur, , Kolkata - 700101, West Bengal, India
Aptech Limited, Chowringhee Mansion, 2nd Floor, 30, Jawaharlal Nehru Road, , Kolkata - 700016, West Bengal, India
12/1a 1st Floor, Banka RAI Street, , Kolkata - 700012, West Bengal, India