Pragmacon India
No. 155, Dakshindari Road
Kolkata- 700048, West Bengal (India)
Ramkrishna Engineering Works
No. 29/3, S. N. Roy Road
Kolkata- 700038, West Bengal (India)
Indian Arts & Signs
No. 5, Abdul Halim Lane, Park Street
Kolkata- 700016, West Bengal (India)
M. B. Engineering
Baltikuri, Surkimill
Howrah- 711113, West Bengal (India)