CD 182, Salt Lake City, , Kolkata - 700064, West Bengal, India
Government Place East, , Kolkata - 700001, West Bengal, India
C/O B B Eye Foundation, 2/5, Ground Floor & 1st Floor & 2nd Floor, Sukhsagar Building, , Kolkata - 700020, West Bengal, India
B B 67, , Kolkata - 700064, West Bengal, India
23/54, Gariahat Road, , Kolkata - 700019, West Bengal, India