Ujjain: Director Mahakal Institute of Technology (MIT) Dr Vivek Bansod and professor Mohit Sharma mesmerised the participants of international conference held in Bangkok by their invention of a new musical instrument ‘mangal vaadhya’ which is a unique combination of music and engineering. The conference was organised on May 16 and 17 in which participants of 12 countries had participated. The organiser of the event Dr Baniyat Sorisang appreciated both of them.