Originally, Dr. Quddus Khan belongs from Bahraich (UP). He has completed his UG and PG from Awadh University Faizabad (UP). He has been completed the Ph.D. from Department of Mathematics, Faculty of Natural Sciences (presently as Faculty of Science), Jamia Millia Islamia, New Delhi in September 2000. Presently, Dr. Khan is working as an Professor in the Department of Applied Sciences and Humanities, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi since 01 July 2017. He has been taught undergraduate and postgraduate classes for the last twenty three years. He had also taught in Shibli National P.G. College, Azamgarh (U.P.) during 11 May 2004 to 20 March 2017, and also worked as Young Scientist (PDF) in the Department of Mathematics, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi from 1 July 2002 to 10 May 2004. Dr. Khan has published 30 research papers on Differentiable Manifolds in various National and International Journals, Ten books on D.G. of manifold and its applications, tensor analysis and its applications, Mathematics for Chemistry, D.G. and its applications, Fundamental concept of recurrent manifold and Sasakian manifold, Fundamental concept of symmetric manifold and Sasakian manifold, Textbook of Differential Calculus, Textbook of Integra Calculus and Elementary Differential Equation and Advanced Enginnering Mathematics and also supervised and awarded four Ph.D’s and currently three Ph.D. scholar are enrolled.