Geologists Syndicate Pvt.Ltd.
No. 137, Biplabi Rash Behari Basu Road, Canning Street, 1st. Floor, Room No. - 25
Kolkata- 700001, West Bengal (India)
Unique Instruments Corporation
No. 41, B. B. Ganguly Street, Near Central Metro Station
Kolkata- 700012, West Bengal (India)
High Adventure Equipment
P-50/Z, Sahid Dinesh Gupta Road Behala
Kolkata- 700034, West Bengal (India)
British Indian Engineering Stores
No. 11, BBD Bag East
Kolkata- 700001, West Bengal (India)