Kat Instrumentation Services Private Limited
30B, Suren Sarkar Road
Kolkata- 700010, West Bengal (India)
Hindustan Engineering Company
31/2a Ram Krishna Samadhi Road
Kolkata- 700054, West Bengal (India)
COMvent
G. E.- 79, Ground Floor, Rajdanga Main Road
Kolkata- 700107, West Bengal (India)
Electrical & Measuring Instruments Private Limited
No. 63/ 2/ 1, Paik Para Row
Kolkata- 700036, West Bengal (India)