TNS Networking Solutions Pvt Ltd,
293 Dhanmill Road, Chattarpur Hills, New Delhi 110074.
Directions : Come to Chhatarpur Temple, after crossing the same you will see Yes bank on the right side. Take left turn here (onto Dhanmill Road). Go 100 metres, you will see Corporation Bank on right side. Keep going for another 100 metres till you see a black gate on the right side with TNS board.
Google maps link : itbx.in/tnsmap