147 1 A First Floor Sananda Apartment, Laketown Block B, , Kolkata, West Bengal- 700089,India
6, Rabindranath Tagor Lane, , Kolkata, West Bengal- 700075,India
Block A, 103, , Kolkata, West Bengal- 700055,India
60a, Sarsuna Main Road, , Kolkata, West Bengal- 700061,India
Port Blair Lane, , Kolkata, West Bengal- 700120,India
K B Sarani, Chaitali Abasan, , , Kolkata, West Bengal- 700001,India
C/O Deb Optical, , Kolkata, West Bengal- 700124,India
54 Eco X Ray & Emerging Institute, Jawaharlal Nehru Road, , Kolkata, West Bengal- 700071,India