Dr Dhirendra Narain Sinha belongs to Ganwaria clan in India. By training he is surgeon and was faculty in surgery in Medical Collages of India. He had served WHO as international Civil servant for over 10 years. He has over 200 publications in peer reviewed journals of excellence to his credit . He has been member of over 100 scientific committees. He had been on the working committee panel of International Agency on Research for Cancer (monograph 89). He has research on global cancer especially on Tobacco related deaths, occupational carcinogens and cancers. He has been visiting scientists of Harvard University over 10 years. He has edited and peer reviewed several scientific reports, monographs and scientific journals of excellence. He has been involved in several intervention projects on cancer control and tobacco control projects. His research has been referenced in over 20000 research papers throughout the world.