Procon Technical ServicesAngana Apartment, 27/3/1, North Purbachal Kalitala Link Road, Near EM By Pass & Pr. A. Shah Crossing, Haltu, Kolkata, West Bengal 700078, India
JCB India LimitedUnit No. 38, 3rd Floor, Shrachi Tower, Plot No. 1-25 B/1, East Calcutta, Area Development Project Kasba at 686, Anandapur, Kolkata, West Bengal 700107, India
Auditory Electronics Center76/B Yusuf Sanfui Road, Charial, Benjan Heria, Budge Budge, Kolkata, West Bengal 700137, India
M/S. Sarju Singh268, East Ghosh Para Road Shyamnagar, near English Medium Shool, Kolkata, West Bengal, India