Renco Pen
No. 19, Pollock Street
Kolkata- 700001, West Bengal (India)
Rita Industries Corporation
No. 7/3, Ramanath Biswas Lane
Kolkata- 700009, West Bengal (India)
R. P. Traders
10, Durga Charan Mitra Street, 2nd Floor
Kolkata- 700006, West Bengal (India)