Mr Sanjay Kumar is an officer of Indian Railway Services of Signal Engineers (IRSSE) and presently working as CHIEF ENGINEER (SIGNAL & TELECOM) in Kolkata Metro Rail Corporation Ltd. (KMRCL) Kolkata, India He is responsible for planning , International Competitive Bidding tendering , site execution , testing & commissioning including all mandatory approvals for the Kolkata East West Metro Rail (KMRCL) Project for the Signal & Telecom system, Automatic Fare Collection system , Platform Screen Door System & ISA work packages. Mr. Kumar is having over 24 years of experience in multi-functional range of Railway Engineering skills which includes planning, tendering, design, execution testing & commissioning and maintenance of Railway signal & Telecom systems in India and abroad .He has been leader for the complete execution of S&T enabling works of SGDET Malaysia project. He has acquired licenses such as Signaling designer & Verifier from IRSE London & construction license from CIDB, Malaysia . He has been instrumental in commissioning of India’s first Wi-Fi internet in running train (Howrah- Delhi Rajdhani express). He has also been instrumental in introducing 1st computer based Train Control charting system, real time train enquiry in Nagpur. Mr. Kumar is member of IRSE London, fellow member of IRSTE/India and Chartered Engineer from Institute of Engineers (India).