SR Sandeep Kumar has won the ‘First Prize’ under the Short Presentation Category, for presenting his paper entitled ‘Ultrasonic Bandgaps of Torsional Mode using Waveguide Metamaterial Rod’ at the Indian Society of NDT's Annual Conference and Exhibition, NDE 2018 held in Mumbai during December 19-21, 2018. He is guided by Prof. Krishnan Balasubramanian and Dr.Prabhu Rajagopal.​