Purushottam Kumar Singh is currently serving as an assistant professor in the Department of Mechanical Engineering at NIT Silchar. He received his PhD degree in Nanomaterials from IIT Dhanbad in 2018. He has more than 5 years of experience. His current research area is nanomaterial synthesis and its applications in energy storage, solar power systems, and thermoelectric generation systems. He has more than 38 research publications comprising articles in both national and international journals, international and national conferences, and book chapters in esteemed internationally published books. He is a reviewer for many international journals.

Santosh Kumar Mishra is currently serving as an assistant professor in the Department of Production Engineering at NIT Trichy. He received his PhD degree in Fluid Power Control from IIT Dhanbad in 2018. He received his BTech in Production Engineering from NIT Trichy in 2009. He has more than 10 years of experience in the design and development of fluid power systems. His current research interests include oil Hydraulics, Hydrostatic Transmission System, Fault diagnosis, Robotics, and Solar Power Systems with nano-materials and additive manufacturing. He has got more than 40 research publications comprising articles in both national and international journals, international and national conferences, and book chapters in esteemed internationally published books. He is reviewer of many international journals. He has also given many invited talks at universities, workshops, and has been a resource person for faculty development programmes.

Pankaj Kumar is Professor and head of Mechanical Engineering Department, SR University, Warangal. In 2011, he received a Teaching Assistant Fellowship from the Ministry of Human Resource Development of India. He received his PhD from IIT(ISM) Dhanbad. Dr. Pankaj has more than 15 years of experience in the design, fabrication, and characterization of micro- to nanoscale components using unconventional techniques. His current research includes Additive Manufacturing, Micromachining, Composite materials processing technology, Nano-materials, Sustainable Manufacturing, and Biotechnology. He has published over 50 research articles in various international journals and conferences, 3 books, 10 book chapters, and 6 patents. He won the best paper award at the International Conference on Research Trends in Science, Technology, Engineering, and Management 2019. He is an Editorial Board member and is a reviewer of many international journals. He has also given many invited talks at universities, workshops, and faculty development programmes.