3, Waterloo Street, , Kolkata - 700069, West Bengal, India
C/O Peerless Hospital & B K Roy Research Centre, , Kolkata - 700094, West Bengal, India
P-73 C, Prince Anwar Shah Road, , Kolkata - 700045, West Bengal, India
40, Jessore Road, , Kolkata - 700028, West Bengal, India
18a, B K Paul Avenue, , Kolkata - 700006, West Bengal, India