Dr. Harendra Kumar Rai is currently working as Associate Professor at Shri Jai Narain P.G. College, India. He earned his D.Phil in Chemistry from University of Allahabad, Allahabad, India. His main area of interest focuses on Molecular Sciences, Physical Science Engineering, and High Pressure Chemistry. His main area of expertise includes Equation of State, Elastic Properties of Solids, Thermo-Elastic Properties, Nano Technology, and Bulk Metallic Glasses. He has published 9 research articles in national and international journals, 4 national and international proceeding contributed as author/co-author.