Saraswati Engineering Works, Howrah
No. 70/6, C. Road, Bamungachi
Howrah- 711106, West Bengal (India)
Hassanally & Company
No. 40, Strand Road, Ground Floor
Kolkata- 700072, West Bengal (India)
Apan John & Corporesan
House No. 33/1, Netaji Subhas Road, Marshall House, Ground Floor, Room No. 33 & 39
Kolkata- 700001, West Bengal (India)