East India Trading Co.
No. 71/ B, Netaji Subhash Road, 2nd Floor, Room No. 118 Gooptu Mansion
Kolkata- 700001, West Bengal (India)
Usha & Usha Industries
18/3, Gariahat Road, Room-7f/1
Kolkata- 700019, West Bengal (India)
Ashok Engineering & Construction Company
No. 14, Ganesh Chandra Avenue
Kolkata- 700013, West Bengal (India)
R.R. Medi Engineering
32/5, Canal South Road, Tangra
Kolkata- 700015, West Bengal (India)
Refra Mech India
No. 22/2, Dr. Suresh Sarkar Road
Kolkata- 700014, West Bengal (India)
Usha Enterprises, Kolkata
No. 4, Grant Street
Kolkata- 700013, West Bengal (India)