4/2K/139, HO Chi Minh Sarani, Sarsuna, , Kolkata - 700061, West Bengal, India
8/17, Cornfield Road Ballygunge, , Kolkata - 700001, West Bengal, India
C/O Peerless Hospital & B K Roy Research Centre, , Kolkata - 700094, West Bengal, India
H A 259, Salt Lake City, , Kolkata - 700091, West Bengal, India
Sitala Abasan, Ghoshpara Main Road, , Kolkata - 700102, West Bengal, India