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)
Reliance Enterprises
No. 62/1, Sahid Khudiram Bose Sarani
Kolkata- 700030, West Bengal (India)
Zenith Glasswares And Instruments Corporation
38/5, Bagbazar Street
Kolkata- 700003, West Bengal (India)