2006 - 2013 Senior Consultant at Sitaram Bhartia Institute of Science & Research
2014 - Present Senior Consultant at Sitaram Bhartia Institute of Science & Research
2002 - 2006 Additional Professor at All India Institute of Medical Sciences
1998 - 2002 Associate Professor at All India Institute of Medical Sciences
1997 - 2000 Specialist A at Mafraq Hospital, Abu Dhabi, UAE
1993 - 1994 Commonwealth Fellow / Registrar at Leeds General Infirmary, Leeds, UK Whipps Cross Hospital and North Middlesex Hospital London, UK
1988 - 1989 Research Fellow at Hope Hospital, University of Manchester, UK
1987 - 1993 Lecturer at University College of Medical Sciences
1985 - 1987 Senior Resident at Safdarjung Hospital