January 2018 onwards,

Editor-in-Chief, Journal of Flow Visualization and Image Processing

January 2016 - January 2019

Dean of Faculty Affairs

January 2008 to January 2011; 1 January 2015 - 31 May 2015

Dean of Research and Development

January 2012 -December 2015

President, National Society of Fluid Mechanics and Fluid Power

June 2005 to February 2008

Head: Department of Mechanical Engineering

May 2005 to June 2006

Chairman GATE, JMET, JAM-2006

December 1995 to present

Professor of Mechanical Engineering (on HAG scale since August 2009)
IIT Kanpur, India

23 June 2007 to 5 July 2007

Visiting Scientist
Computer Vision Laboratory, Department of Electrical Engineering, Swiss Federal Institute of Technology (ETH) Zurich, Switzerland.

August 2003 to December 2003

Adjunct Professor
Mewbourne School of Petroleum and Geological Engineering and Department of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, USA.

May-July 99 INSA/JSPS Invitation Fellow
Kyoto University, Kyoto, Japan.

June-July 97

Visiting Research Professor
SUNY Stony Brook, USA.

August 1996 to May 1997

JSPS Invitation Fellow
Kyoto University, Kyoto, Japan.

March 1993 to December 1995 Associate Professor, IIT, Kanpur, India.
July 1987 to March 1993 Assistant Professor, IIT Kanpur, India.
January 1986 to July 1987, Post-doctoral Fellow, Lawrence Berkeley Laboratory, Berkeley, CA, USA.
April 1985 to December 1985 Post-doctoral Fellow, University of Delaware, Newark, DE, USA.