Dr. Bijender Kumar is a postdoctoral research fellow in the Creative Research Center for Nanocellulose Future Composites, Department of Mechanical engineering, Inha University, South Korea. He received B.Sc. and M.Sc. degrees from Chaudhary Charan Singh University, Meerut, India, and Ph.D. in Polymer and Process Engineering from the Indian Institute of Technology Roorkee, India, in 2018. He worked as a Research Associate in the Polymer and Process Engineering Department at the Indian Institute of Technology Roorkee, India. His research areas are the preparation of monomers and polymers, cross-linking polymers, lignin and vanillin-based epoxy resins, thermosets, and natural fiber-reinforced composites.