Ph.D., Mathematics, 1980, University of Delhi, Thesis entitled “Spectral Synthesis in Hypergroups”
M.Sc., Mathematics, 1976, University of Delhi, Second position in the University.
B.Sc. (Hons.) Mathematics, 1974, University of Delhi.
Proficiency in German Language, Studied at Goethe Institute, Rothenberg ob der Tauber, Germany, 1981.
Proficiency in French Language, Studied at University of Strasbourg, France,1987.
Math Geneology:
G. H. (Godfrey Harold) Hardy—>Frank Smithies—>Ajit Iqbal Singh—>Ajay Kumar
Dean Research (Physical and Mathematical Sciences), University of Delhi , July 4, 2012- Nov 25, 2016.
Dean Faculty of Mathematical Sciences, Dec 21, 2012-Aug 2, 2013.
Head, Department of Mathematics, Dec 21, 2012- Dec 20, 2015.
Dean Research, University of Delhi, Jan 24, 2011- July 3, 2012.
Programme Coordinator/Director, Cluster Innovation Centre, University of Delhi, Sept 2011- Jan 2012.
Chairman, Board of Research Studies Mathematical Sciences, University of Delhi, Dec 21, 2012-Aug 2, 2013.
Professor, Department of Mathematics, University of Delhi, Delhi, India since Sept 2004.
Postdoctoral fellow / Guest Professor in several Universities in Germany, France, U.K.
Reader, Department of Mathematics, Rajdhani College (University of Delhi) from 1987-2004.
Lecturer, Department of Mathematics, Rajdhani College (University of Delhi) from 1977-1987.
DAAD (German Academic Exchange Service) Post-doctoral fellow at University of Paderborn, Germany, 1981-1983.
C.I.E.S.(French Govt. Fellowship) Post-doctoral fellow at University of Strasbourg, France, 1987-88.
Post-doctoral Fellow (Wissenschaftlicher Mitarbeiter) at Fachbereich Mathematik, University of Paderborn, Germany, 1989.
DAAD (German Academic Exchange Service) Re-invitation fellowship at Freie Universitat, Berlin, Germany, 1992.
Post-doctoral Fellow of Freie Universitat Fachbereich Mathematik, Freie Universitat, Berlin, Germany, 1992.
Commonwealth Academic Staff Fellowship at University of Edinburgh, U.K, 1995-96.
DAAD (German Academic Exchange Service) Re-invitation fellowship at Fachbereich Mathematik, University of Paderborn, Germany, 1999.
Royal Society, London fellowship collaboration with Indian National Science Academy at University of Edinburgh, U.K., 2000.
DAAD (German Academic Exchange Service) Re-invitation fellowship at Freie Universitat, Berlin, Germany, 2003.
DFG (German Research Foundation) collaboration with Indian National Science Academy at Freie Universitat,Berlin,Germany. 2004.
DFG (German Research Foundation) collaboration with Indian National Science Academy at Freie Universitat,Berlin,Germany. 2008.
JSPS( Japan Society for Promotion of Science) collaboration with Indian National Science Academy at Gunma University, Japan, 2012.
Several research grants from University Grants Commission, Council of Scientific Research, University of Delhi.