INSTITUTE OF OBJECTIVE STUDIES
45, 1st Floor, Elliot Road, , Kolkata - 700016, West Bengal, India
5, Ground Floor, Royal Insurance Building, Netaji Subhash Road, , Kolkata - 700001, West Bengal, India
Purbasha Apartment, Jessore Road, , Kolkata - 700129, West Bengal, India
38, Shyam Sundar Pally, , Kolkata - 700061, West Bengal, India
P 112, Block A, , Kolkata - 700089, West Bengal, India
P 163, C I T Road, , Kolkata - 700054, West Bengal, India