GD-302, sector-3, salt lake city, , Kolkata - 700106, West Bengal, India
BD-313, ground floor, sector-1, , Kolkata - 700064, West Bengal, India
C/O Rotary Narayana Nethralaya, , Kolkata - 700091, West Bengal, India
104/1 A, Diamond Harbour Road, , Kolkata - 700008, West Bengal, India
43/2, , Hazra Road, , Kolkata - 700019, West Bengal, India