Sandip Kunar, PhD is an Assistant Professor in the Department of Mechanical Engineering at the Aditya Engineering College, Andhra Pradesh, India. He has published more than 28 research papers in various reputed international journals, more than 24 research papers in national and international conference proceedings, 35 book chapters, and 13 books. He has also published two patents and been granted an additional two. His research interests include non-conventional machining processes, micromachining processes, advanced manufacturing technology, and industrial engineering.

Gurudas Mandal, PhD is an Assistant Professor in the Department of Metallurgical Engineering, Kazi Nazrul University, West Bengal, India. He has published 20 technical research papers in reputed international journals, eight papers in conference proceedings, and nine book chapters. His research interests focus on alloy steel and cast iron, composite materials, magnetic materials, hydrogen energy, and archaeometallurgy.

Preeti Singh Bahadur, PhD is an Associate Professor in the Applied Science Department, Amity University, Greater Noida, India, with more than 21 years of experience. She has published more than 90 research articles in various journals of repute and several book chapters, and has also presented more than 25 research papers in various national and international and conferences. Her current areas of interest include matter physics, lasers, optics, optoelectronics, and sustainable and green manufacturing.

S. Rama Sree, PhD is a Professor in the Computer Science and Engineering Department and Pro Vice-Chancellor of Academics, Aditya University, Andhra Pradesh, India. Her publications include 35 papers in international journals, 15 papers in national and international conferences, one co-authored book, and four patents. Her research interests include software cost estimation, software reusability, software reliability, software defect prediction, software maintenance, soft computing, applications of machine learning techniques, medical diagnosis, and cloud computing.

M. Sreenivasa Reddy, PhD is the Director of the Aditya Group of Educational Institutions and the Deputy Pro-Chancellor of Aditya University, Andhra Pradesh, India. He has published more than 40 research papers in various reputed international journals, national and international conference proceedings, ten book chapters, and two books. His research interests include non-conventional machining processes and manufacturing technology.