Protech Infosystems Private Limited
AQ-13/1, 4th Floor, Salt Lake, Sector-V
Kolkata- 700091, West Bengal (India)
Inftech Lab
BA-3, Salt Lake
Kolkata- 700064, West Bengal (India)
Sas Securities
183,Block-Be Salt Lake Sector I
Kolkata- 700064, West Bengal (India)