Merck Millipore
No. 8, Camac Street, Shantiniketan Building, 7th Floor
Kolkata- 700017, West Bengal (India)
Arindam Sen
61 Manicktala Main Road Bagmari
Kolkata- 700054, West Bengal (India)
TKDE
22A Motilal Nehru Road
Kolkata- 700029, West Bengal (India)
Sudipta Ghosh
11/5 Balai Mistry Lane , Shibpur
Howrah- 711103, West Bengal (India)
Kumares Mandal
Vill - Parasurampur Po - Kalatalahat , Ps - Ramnagar
24 Parganas- 743504, West Bengal (India)