48/1 F, Leela Roy Sarani, , Kolkata - 700019, West Bengal, India
40, Deshpran Sasmal Road, , Kolkata - 700033, West Bengal, India
111/2b, Bhutnath Bhavan, Bidhan Sarani, , Kolkata - 700004, West Bengal, India
Bhawanipur, , Kolkata - 700025, West Bengal, India
C/O Deb Optical, , Kolkata - 700124, West Bengal, India