After completing my M.Phil in 1981, worked as Jr Research fellow (CSIR) and Sr Research Fellow (CSIR) under the supervision of Dr Ram Singh, Reader, Punjabi University, Patiala and published two papers.
As a Commonwealth Scholar, completed my D.Phil under the supervision of Dr (Prof) T B Sheil-Small, Department of Mathematics, University of York, York, UK. This was from 1994 to 1997.
Abstract: DPhil Thesis
D.Phil Thesis abstract