I am a mathematician, in the Faculty of Department of Mathematics, Indian Institute of Technology Delhi since 1991. My research interests are in additive and combinatorial Number Theory, aspects of Ramsey Theory, and parts of Graph Theory. In addition to research, I have been fortunate to having taught the whole gamut of courses in pure Mathematics to both undergraduates and graduate students.

My non-mathematical interests range from playing table tennis, watching a variety of sports live or on TV (particularly cricket), solving sudoku, and listening to songs from Hindi films (particularly from the era 1945-1975).