Shambhu Nath Mandal is a Specialized Engineering in Aircraft Maintenance, repair and overhaul Engineering. From 1986 to 1987 Work in "aero engineer India" to take care of regulatory compliance. From 1987 to 2018 Work in Air India Engineering Service Ltd associated with maintenance of Aircraft and retired as Superintendent service Engineer and acquired Aircraft maintenance Engineer Licence after passing all DGCA B1.1 Module Examination. He is an Instructor-Foreman in Maintenance Training organisation (MTO) of Air India Engineering Service Ltd to act as a facilitator and safety instructor of CAR 147 Basic AME Student to fulfill their practical training requirement. During Service acquired Fire Engineering and Safety Management (FESM) and also European Union aviation Safety Agency (EASA) Instructor Diploma. Founder Member Aviation Safety Management Society of India MASMSI).