Dr. Pulak M. Pandey completed his PhD in Additive Manufacturing/3D Printing from IIT Kanpur in 2003. He joined IIT Delhi as a faculty member in 2004 and is presently a professor. In IIT Delhi, Dr. Pandey diversified his research areas in micro- and nano-finishing and micro-deposition and continued working in the area of 3D printing. He supervised 35 PhDs and more than 36 MTech theses in the last 10 years and filed 21 Indian patent applications. To his credit, he has published approximately 185 international journal papers and 45 international/national refereed conference papers. Dr. Nishant K. Singh is an associate professor at Harcourt Butler Technical University, Kanpur, Uttar Pradesh, India. He earned his PhD from IIT, Dhanbad, and Master’s in Production Engineering and BTech in Mechanical Engineering from Delhi College of Engineering. Dr. Singh has more than 16 years of teaching experience. He has written more than 90 research articles in well-known international journals and serves as a reviewer and editorial member in peer-reviewed journals and conferences. His research interests include tribology, micro-manufacturing, non-conventional machining, and additive manufacturing processes. Dr. Yashvir Singh is presently a postdoctoral fellow at Universiti Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat, Johor, Malaysia. He is also an associate professor in the Department of Mechanical Engineering, Graphic Era Deemed to be University, Dehradun, Uttarakhand, India. Dr. Singh completed his PhD at the University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India. He has more than 15 years of teaching experience. Dr. Singh has written more than 120 research articles and published them in various peer-reviewed journals. He is also a reviewer and editorial board member in various journals. Dr. Singh works in tribology, bioenergy, lubrication, and manufacturing.