Ph.D., Indian Institute of Science (Under Tata Institute of  Fundamental Research - Indian Institute of Science Joint Program), 1989.

Research Assistant , Tata Institute of Fundamental  Research, Bangalore Centre, 1984 - 1989.

Postdoctoral Fellow, Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, U.S.A., 1990 - 1991.

Scientific Research Fellow, Systems and Control Group, Faculty of Applied Mathematics, University of Twente,  Enschede, The Netherlands, 1991.

Postdoctoral Fellow, Institute for Systems Research, University of Maryland, College Park, U.S.A., 1991 - 1992.

Assistant Professor, Department of Mathematics, Indian Institute of Science, 1992 - 1998.

Associate Professor, Department of Mathematics, Indian Institute of Science, 1998 - 2004.

Professor, Department of Mathematics, Indian Institute of Science, 2004 -