P. D. Simpson & Co
No. 14, Ganesh Chandra Avenue Ground Floor
Kolkata- 700013, West Bengal (India)
A. N. Gupta & Co.
40, Strand Road, 3rd Floor, Room No. 16A
Kolkata- 700001, West Bengal (India)
Saroma Electricals
20B, South Sealdah Road
Kolkata- 700015, West Bengal (India)
Jeevan Associates
Haridradanga, Bisaharitala
Chandannagar- 712136, West Bengal (India)
Regular Systems
No. 90- D- 1, Regent Estate
Kolkata- 700092, West Bengal (India)