Department of Mathematics, Chaudhary Charan Singh University, Meerut

Professor(Retired) of Mathematics,Indian Institute of Technology,New Delhi

Department of Mathematics, SRM University, Kattankulathur, Chennai - 603203, India.

Department of Mathematics, University of Delhi, Delhi, India

Distinguished Professor of Mathematical Sciences, Sharif University of Technology

Professor and Research Fellow of Mechanical Engineering, De La Salle University

Professor of Applied Mathematics, Islamic Azad University, Qaemshahr Branch

Professor of Mathematics, Amirkabir University of Technology,Tehran, Iran

Associate Professor, Indian Institute of Engineering Science and Technology, Shibpur

Full Professor of Applied Mathematics, Quchan University of Technology, Iran