Transmission Equipment Corporation
FE - 96, Sector - 3, Salt Lake City
Kolkata- 700106, West Bengal (India)
S. B. Industries, New Alipore, Kolkata
161, S. N. Roy Road
Kolkata- 700038, West Bengal (India)
BFS Ancillary Corporation
No. 5, Madan Chatterjee Lane
Kolkata- 700007, West Bengal (India)
Eastern Copper Manufacturing Co. Private Limited
No. 42/1, 2nd Floor, Strand Road
Kolkata- 700007, West Bengal (India)