Mr. Tharasi Dilleswar Rao is presently a Senior Research Fellow at Department of Mathematics, National Institute of Technology (NIT) Rourkela, Odisha, India. He received his M. Sc. degree from Osmania University Telangana. Mr. Rao has worked on a research project in Department of Mathematics, NIT Rourkela, on “Fuzzy Uncertainty Analysis of Fluid Mechanics Problems: A Case Study to Radon Transport and Shallow/Tsunami Wave Equations” funded by Board of Research in Nuclear Sciences, Dept. of Atomic Energy, Mumbai, India. He is presently pursuing his doctoral research in NIT Rourkela under the supervision of Prof. S. Chakraverty. Mr. Rao has published 3 papers in reputed refereed journals, two conference papers, and two book chapters. Mr Rao is a co-author of the book entitled Advanced Numerical Methods and Semi Analytical Methods for Differential Equations. His research area includes numerical methods, fuzzy/interval uncertainty and modelling radon transport mechanisms.