July 2012- Present : Professor, Department of Mathematics, Visva-Bharati, Santiniketan, INDIA
October 2017- October 2020 : Professor & Head, Department of Mathematics, Visva-Bharati, Santiniketan, INDIA
July 2009- June, 2012 : Associate Professor, Department of Mathematics, Visva-Bharati, Santiniketan, INDIA
July 2006 – June 2009: Reader, Department of Mathematics, Visva-Bharati, Santiniketan, INDIA
April 2005-June 2006 : Senior Lecturer, Department Mathematics,Visva-Bharati, Santiniketan, INDIA
July 2001-March 2005: Senior Lecturer in Mathematics, Krishnath College, Berhampore, Murshidabad, India
July 1997-June 2001 : Lecturer in Mathematics, Krishnath College, Berhampore, Murshidabad, India
August 1994- June 1997 : Senior Research Fellow (SRF), Council of Scientific and Industrial Research (CSIR), India, at Visva-Bharati, W.B, India.
August 1992- July 1994 : Junior Research Fellow (JRF) , Council of Scientific and Industrial Research (CSIR), India, at Visva-Bharati, W.B.,India.