1987 - 1989 Senior Residency at Govt. Medical College, Jammu, Jammu & Kashmir, India 1987-1989
1990 - 1991 Senior Resident at Dept. of Clinical Immunology, SGPGI, Lucknow, UP, India Jan - Apr 1990
1990 - 1991 Senior Resident at Dept. of Medical Oncology, All India Institute of Medical Science (AIIMS), New Delhi, India. 1990-1991
1991 - 1993 Chairman at Division of Medical & Paediatric Oncology, Haematology & Bone Marrow / Stem Cell Transplant Medanta The Medicity, Gurgaon 2009 till date
1994 - 1997 Consultant at Medical Oncologist & Lecturer Dept. of Internal Medicine Govt. Medical College, Jammu, J&K, India
1997 - 2007 Sr. Consultan at Dept. of Medical Oncology, Rajiv Gandhi Cancer Institute & Research Centre, Delhi, India
2007 - 2009 Head, Dept at Medical Oncology, Artemis Health Institute, Gurgaon, India