Dr. Vishnu Hari is a highly accomplished Medical Oncologist and Associate Director & Head of Unit I in Medical Oncology, Haematology & Bone Marrow Transplant (BMT) at Sarvodaya Hospital, Faridabad, with over 11 years of experience in oncology. He completed his MBBS and MD in Internal Medicine from Government Medical College, Calicut, Kerala, and went on to earn his DM in Medical Oncology from the Regional Cancer Centre (RCC), Trivandrum, one of India's foremost cancer institutions, where he also served as Senior Resident and subsequently as Assistant Professor in the Department of Medical Oncology. Prior to joining Sarvodaya Hospital, he has held consultant positions at Rajagiri Hospital, Cochin, and Fortis Memorial Research Institute (FMRI), Gurgaon, gaining diverse clinical exposure across leading cancer care centres in South India and the NCR region. Dr. Vishnu Hari's clinical expertise spans the full spectrum of solid and haematological malignancies, including leukaemia, lymphoma, myeloma, breast cancer, sarcoma, gastrointestinal cancers, and genitourinary cancers. He is additionally specialised in geriatric oncology and hereditary cancer syndromes - two rapidly evolving subspecialties within oncology that require a particularly nuanced, patient-centred approach. His procedural and therapeutic expertise encompasses bone marrow transplantation, stem cell transplantation, immunotherapy, precision oncology, and oncology critical care, positioning him as a comprehensive cancer specialist capable of managing both routine and highly complex oncological cases. An active contributor to oncological research, Dr. Vishnu Hari has numerous publications in national and international peer-reviewed journals, and is a member of the American Society of Clinical Oncology (ASCO) and the European Society of Medical Oncology (ESMO), reflecting his alignment with global standards in cancer care. His commitment to evidence-based, multidisciplinary oncological practice continues to make him a trusted name in cancer care across the Delhi-NCR region.