Dr. Beri Venkatachalapathy Senthil Kumar completed his Ph. D in 2015. His area of interest is Solution and stability of functional equations, Operations Research, Statistics and Discrete Mathematics. He has 18+ years of Teaching and 8 years of Research experience. He has published more than 40 research papers in reputed journals. He has co-authored a book titled Functional Equations and Inequalities: Solution and Stability results , published by Word Scientific Publishing Company. He has also published a book entitled Probability and Queueing Theory , Published by KKS Publishers. Recently, he has contributed a chapter on Stabilities and Instabilities of Rational Functional Equations and Euler-Lagrange-Jensen (a, b)-Sextic Functional Equations , in the book on Mathematical Analysis and Applications (Selected Topics) by John Wiley & Sons, U.S.A., 2018. Dr. Hemen Dutta is Senior Assistant Professor of Mathematics at Gauhati University, India. He did his M.Sc in mathematics, and Ph.D. in mathematics from Gauhati University, India. He received his M.Phil in mathematics from Madurai Kamaraj University, India. His primary research interests are in areas of Mathematical Analysis & Applications. He has to his credit several papers in research journals, and five books. He visited foreign institutions in connection with research collaboration and conference. He has delivered talks at foreign and national institutions. He is a member of some mathematical societies.