Owner :
Mrs.Anasuya Gupta, Mrs.Smita Chatterji, Mr.Joydeep Datta Gupta, Mr.Debasish Banerjee rep. M/s.Sigma Scan Systems Pvt.Ltd., Mr.Achuthan Siddharth, Mr.Sanjay Datta Gupta Mr.Debasish Mishra, Mr.Gaurav Gupta, Mr.Rajat Banerji & Mr.Manosh Mukherjee
