Usha Connect Technology Private Limited
No. 5 / 5, B. T. Road,. Belgharia
Kolkata- 700056, West Bengal (India)
DD Group
DD House, P-32, Kasba Industrial Estate, Phase-1
Kolkata- 700107, West Bengal (India)
R. G. Holdings Private Limited
No. 31- A, Paddapukur Road, Lansdowne
Kolkata- 700019, West Bengal (India)