Smartech Services
No. 32/4, Jagat Roy Chowdhury Road
Kolkata- 700008, West Bengal (India)
Hindustan Dorr Oliver Limited
No. 3- A, Hindustan Road, Gariahat
Kolkata- 700029, West Bengal (India)
Refcon Projects Pvt. Ltd
3, Dr. Rajendra Prasad Sarani (Formerly Clive Row) 3rd Floor
Kolkata- 700001, West Bengal (India)
Standard Equipments Private Limited
D-18, Tangra Industrial Estate, 25 & 27 Canal South Road
Kolkata- 700015, West Bengal (India)