Dr. Pankaj Kumar received his M.Sc. and PhD degrees from the Department of Mathematics, IIT Roorkee, India, in 2012 and 2021, respectively. He worked as a research associate until September 30, 2021. His main research interests include queueing/reliability models, fault-tolerant machining systems, stochastic processes, and optimization. Over ten papers in SCI-ranked journals and conferences, including Reliability Engineering and System Safety, ISA Transactions, Journal of Ambient Intelligence and Humanized Computing, and Arabian Journal for Science and Engineering. He has attended more than ten national/international conferences and workshops. He is a recipient of the MHRD fellowship while carrying out his doctorate work.