280, 1st Floor, B B Ganguly Street, , Kolkata - 700012, West Bengal, India
430, Mahatma Gandhi Road, Tolly Gunj,, Kolkata - 700082, West Bengal, India
36-b, Block-b, New Alipore,, Kolkata - 700053, West Bengal, India
Bsnl Electrical Sub Division-xii, Dum Dum Telephone Exchange, 264, Jessore Road,, Kolkata - 700028, West Bengal, India
33/3, Plot No 31, Sahapur Colony East, , Kolkata - 700053, West Bengal, India