C/O Optaid Eye Care, Block D, P40/A, , Kolkata - 700055, West Bengal, India
12, U N Brahmachari Street, , Kolkata - 700017, West Bengal, India
B D 121, Salt Lake City Sector 1, , Kolkata - 700064, West Bengal, India
106, Jessore Road, Madhyamgram, , Kolkata - 700129, West Bengal, India
Shree Tower 2, Raa 36 , 2nd Floor, V I P Road, , Kolkata - 700059, West Bengal, India