Assistant Professor at  BIT, Mesra:1997-2002 

PhD pursued: 2000-2004

Research Associate:2005-2006, CSIR Sponsored 

Senior Lecturer at BIT, Mesra:2006-2008

Reader at BIT, Mesra: 2008-2011

Asssociate Professor at BIT, Mesra: 2011-2015

Teaching :17 years at BIT, Mesra

Research: 18 years at BIT Mesra &Calcutta University