Bhupendra Shah & Co.
No. 44, Ezra Street
Kolkata- 700001, West Bengal (India)
Tarang Traders & Credits Company Private Limited
No. 1/1A, Tara Road
Kolkata- 700026, West Bengal (India)
Swap Enterprise
No. 15, Nandalal Mitra Lane, Tollyganj
Kolkata- 700040, West Bengal (India)
Digitech Systems, Kolkata
No. 12/ 1/ 9, Monohar Pukur Road, 1st Floor,
Kolkata- 700026, West Bengal (India)
Lab Instruments
No. 15/20, Biplabi Barin Ghosh, Sarani
Kolkata- 700067, West Bengal (India)
International Chemicals India
50, Central Rd,, Jadavpur University,
Kolkata- 700032, West Bengal (India)
Deb Scientific
No. 112, Chittaranjan Avenue
Kolkata- 700073, West Bengal (India)
Bhattacharya & Co. Kolkata
No. 151/D, Raja Dinendra Street
Kolkata- 700004, West Bengal (India)
Zurich International, Kolkata
No. 23/1B, Gariahat Road West, 1st Floor
Kolkata- 700068, West Bengal (India)