He did his MD in Internal Medicine in 1986 and underwent 3 years (1987 90) of Adult Oncology training at Tata Memorial Hospital, Mumbai under the able guidance of Dr S. H. Advani. During this period he wrote a research project on Chronic Myeloid Leukemia for which he got a Fellowship to work with Dr Harvey Priesler in Cincinati, USA. He spent nearly 3 years there, doing research on various aspects of leukemia and especially the CD 34 + hematogenic progenitor cells. In 1992, he moved to Memphis, Tennessee, USA to work at St. Jude Childrens Research Hospital which is considered the Mecca of Pediatric Oncology. Here he did his Board Certification in Pediatrics and Fellowship in Pediatric Hematology Oncology. After spending 8 years in USA, he came back and joined Tata Memorial Hospital. At present he is an Additional Professor and Consultant Medical Oncologist in charge of the Pediatric Leukemia Lymphoma and Retinoblastoma section. He has keen interest in leukemia cell biology, immunology, cell kinetics and Experimental Oncology. He has more than 200 scientific publications in various peer reviewed journals to his credit.