The vision of few dozen Radiation Oncologists of India gave birth to the idea of forming the Association of Radiation Oncologists of India, mainly to provide a common forum to the Radiation Oncologists of India to meet and to share experience and research observations in the field of Radiation Oncology. This gave birth to ‘Association of Radiation Oncologists of India (AROI)’ and opening conference of was held at Nagpur in 1978. The association has completed 43 glorious years of existence. During this journey we have grown up from a handful of founder members to a strong force of more than 4000 members. The AROI (Association of Radiation Oncologists of India) attaches very high importance to the academic & research activities in Radiation Oncology with its related disciplines. The AROI has been at the forefront to protect the interest, take care of the needs and aspirations of radiation oncologists of India.