Professor (2012 - 2021), NRC, IISc, Bangalore

TATACHEM Chair Professor (2015-2018), IISc, Bangalore

Associate Professor (2006 - 2012), NRC, IISc, Bangalore

Principal Research Scientist (1998 - 2006), SIF, IISc, Bangalore

Senior Scientific Officer (1992 - 1998), SIF, IISc, Bangalore

Scientific Officer (1986 - 1992), SIF, IISc, Bangalore

Post Doctoral Fellow, Department of Physics, University of Basel, Switzerland (1990 - 1991)

Research fellow, Department of Chemistry, Ben Gurion University of the Negev, Israel (1998 - 1999)

Research Fellow, Department of Chemistry. University of Southampton, Southampton, UK (1999 - 2000)