Protech Infosystems Private Limited
AQ-13/1, 4th Floor, Salt Lake, Sector-V
Kolkata- 700091, West Bengal (India)
A2z Maintenance & Engineering Services Limited
AD-99 Salt Lake City Sector-1
Kolkata- 700064, West Bengal (India)
Autark Management Service Private Limited
Bb 94,Sector 1, Salt Lake City,, Salt Lake
Kolkata- 700064, West Bengal (India)