| SL. No. | Designation | Organization | Duration |
|---|
| 1. | Professor & Head, Department of Surgery | AHMS Patna | March 2020-till date |
| 2. | Additional Professor & Head, Department of Surgery | AIIMS Patna | April 2013 - February 2020 |
| 3. | Consultant GI & Laparoscopic Surgeon, Department of Surgery | Kurji Holy Family Hospital, Patna | December 2007 - March 2013 |
| 4. | Associate Professor, Department of Surgery | BP Koirala Institute of Health Sciences, Dharan, Nepal | December 2005 - June 2007 |
| 5. | Assistant Professor, Department of Surgery | BP Koirala Institute of Health Sciences, Dharan, Nepal | July 2002 - November 2005 |
| 6. | Specialist Registrar | Pushpawati Singhania Institute & Research Centre, New Delhi | April 2001 - June 2002 |
| 7. | Specialist Registrar | Malhotra Heart Institute, New Delhi | December 2000 - March 2001 |
| 8. | Senior Resident, Department of Surgery | All India Institute of Medical Sciences, New Delhi | June 1997 - August 2000 |
| 9. | Junior Resident, Department of Surgery | All India Institute of Medical Sciences, New Delhi | January 1994 - December 1996 |
| 10. | Junior Resident, Department of Medicine | Patna Medical College & Hospital, Patna | March 1993 - December 1993 |