Dr. Dikshit is an Epidemiologist working in the area of cancer for over three decades, with expertise and experience in cancer epidemiology, molecular epidemiology, surveillance and cancer registries.

Dr. Dikshit is also the Director of Centre for Cancer Epidemiology at Tata Memorial Centre, Mumbai where he leads multidisciplinary research programs with emphasis on assessing cancer burden, identifying risk factors related to life style and genetics, and studying risk factors for disease progression. He is also engaged in developing education and training programs in Epidemiology to foster research in the country and has served as a faculty for Epidemiology at Tata Memorial Hospital, and other institutions mentoring students in this field.

Dr. Dikshit has been Principal Investigator and co-investigator on numerous nationally and internationally funded epidemiological studies to understand cancers of sites relevant to Indian population such as oral, breast, gall bladder cancers and has trained other researchers who are now leading their own studies.

In addition to research activities, Dr. Dikshit is the regional representative of International Association of Cancer Registries for Asia and Principal Coordinator of IARC Regional Hub for Cancer Registration in Asia, with its headquarters in Tata Memorial Hospital (TMH). With his leadership, Dr. Dikshit has played an important role in expansion of network of population-based cancer registries in India, thereby strengthening cancer surveillance in the country. He has also been actively conducting courses and workshops on cancer registration for registries in India and other Asian countries such as Myanmar, Nepal and Bhutan. The Hub is also responsible for conducting courses on cancer epidemiology, cancer survival and prediction methods.