Unique Instruments Corporation
No. 41, B. B. Ganguly Street, Near Central Metro Station
Kolkata- 700012, West Bengal (India)
S.D. Hardson Company
No. 106/B, Raja Denindra Street
Kolkata- 700004, West Bengal (India)
Toshniwal Enterprises & Controls Private Limited
No. 31, Ganesh Chandra Avenue, 4th Floor
Kolkata- 700013, West Bengal (India)
Chemicals & Instruments Corporation
No. 55, Ezra Street, 3rd Floor
Kolkata- 700001, West Bengal (India)