SISTEMA SHYAM TELESERVICES LTD.
Dl-51, Ps Srijen Techpark, Green Building, 9th Floor, Sector-5, Salt Lake,, Kolkata - 700080, West Bengal, India
47c/1-b, Bally Gunge, Terrace Road,, Kolkata - 700029, West Bengal, India
107 A, Rashbehari Avenue, , Kolkata - 700029, West Bengal, India
8, Camac Street, Shantiniketan Building Basement Room No 13, Abanindranath Tagore sarani, Circus Avenue, , Kolkata - 700017, West Bengal, India
7, Main Road, Sarat Bose Road,, Kolkata - 700020, West Bengal, India
1620, 2 Floor, Synagogue Street,, Kolkata - 700001, West Bengal, India