Gupta Scientific Industries
No. 82, Main Road West New Barrackpore
Kolkata- 700131, West Bengal (India)
Associated Scientific Manufacturing Industries
10,Bhairab Mukherjee Lane, Shyambazar (Opp. R.G.Kar Medical College And Hospital Emergency Building)
Kolkata- 700004, West Bengal (India)
Scientific Instrument Products, Kolkata
No. 19/ D/ H/19, Goabagan Street, Beadon Street, Chittaranjan Avenue
Kolkata- 700006, West Bengal (India)
Swap Enterprise
No. 15, Nandalal Mitra Lane, Tollyganj
Kolkata- 700040, West Bengal (India)