1983 - 1986 Chest Physician at T B Sanitorium
1986 - 1993 Chest Physician at T B Hospital, Thakurganj
1999 - 2006 Senior Consultant at Rani Laxmi Bai Hospital, Rajajipuram
2007 - 2009 Senior Consultant at Moti Lal Nehru District Hospital
2009 - 2012 Joint Director at UP AIDS Control Society
2012 - 2014 Joint Director at Vector Borne Disease Control Program
2014 - Present Senior Consultant at Charak Hospital & Research Centre