Ets Intarlaken Technologies
5th Floor, No. 117, BT Road
Kolkata- 700108, West Bengal (India)
Unique Instruments Corporation
No. 41, B. B. Ganguly Street, Near Central Metro Station
Kolkata- 700012, West Bengal (India)
Library Accessories
No. 17A, Burmah Shell Near Sodepur Post Office, Opposite Allahabad Bank
Kolkata- 700101, West Bengal (India)
P. C. International
No. 21, Parsee Church Street, First Floor, Room No. 1
Kolkata- 700001, West Bengal (India)
Surya Instruments
28, Tara Chand Dutta Street, Ground Floor
Kolkata- 700073, West Bengal (India)