Cardiology and Cardiac Surgery,
- Medical Officer, National Pulse Polio Immunization Program, India (1993-1994)
- Intern, Indian Diabetic Association (1994)
- Senior Resident, General Surgery, AIIMS, New Delhi (Sep 2000 – Dec 2001)
- Surgical Teacher, Nehru Homoeopathic Medical College (a Govt. of India Organization) (April 2000 – October 2001 and July 2002 – October 2004)
- Clinical Attachment and Trainee (Vascular Surgery), Hillingdon Hospital, Middlesex, UK (Dec 2001 – Jul 2002
- Senior Resident (Cardiovascular Surgery), Kalinga Hospital Ltd., Bhubaneswar (Aug 2002 – Aug 2004)
- M.Ch student (Cardiac and Thoracic Surgery), Nizam's Institute of Medical Sciences, Hyderabad (Sep–Nov 2005)
- Senior Resident (Pediatric Cardiac Surgery), Escorts Hearts Institute and Research Centre, New Delhi (Dec 2005 – Apr 2006)
- Clinical Fellow (Pediatric Cardiac Surgery), Children's Hospital of Michigan, Detroit Medical Center/Wayne State University, Michigan, USA (Aug 2006 - Aug 2007)
- Clinical Fellow (Pediatric Cardiac Surgery), Medical University of South Carolina Charleston, USA (Aug 2007 – Aug 2008)
- Medical Officer, National Pulse Polio Immunization Program, India (1993-1994)
- Intern, Indian Diabetic Association (1994)
- Senior Resident, General Surgery, AIIMS, New Delhi (Sep 2000 – Dec 2001)
- Surgical Teacher, Nehru Homoeopathic Medical College (a Govt. of India Organization) (April 2000 – October 2001 and July 2002 – October 2004)
- Clinical Attachment and Trainee (Vascular Surgery), Hillingdon Hospital, Middlesex, UK (Dec 2001 – Jul 2002)
- Senior Resident (Cardiovascular Surgery), Kalinga Hospital Ltd., Bhubaneswar (Aug 2002 – Aug 2004)
- M.Ch student (Cardiac and Thoracic Surgery), Nizam's Institute of Medical Sciences, Hyderabad (Sep–Nov 2005)
- Senior Resident (Pediatric Cardiac Surgery), Escorts Hearts Institute and Research Centre,
- New Delhi (Dec 2005 – Apr 2006)
- Clinical Fellow (Pediatric Cardiac Surgery), Children's Hospital of Michigan, Detroit Medical Center/Wayne State University, Michigan, USA (Aug 2006 - Aug 2007)
- Clinical Fellow (Pediatric Cardiac Surgery), Medical University of South Carolina Charleston, USA (Aug 2007 – Aug 2008)