AP Secure Services Pvt. Ltd.
83/69, Mallick Colony, Dumdum Road, P.S. Dumdum
Kolkata- 700074, West Bengal (India)
DSC Switching
No. 148/3Q, Swinhoe Lane
Kolkata- 700039, West Bengal (India)
Ex- Man Security Services Private Limited
Flat No. 11 B , B- Block, 2nd Floor, No. 1, Chandani Chowk
Kolkata- 700072, West Bengal (India)
F3 Security & Facility Services
P.C.B.L. More
Durgapur- 713201, West Bengal (India)