Sekhar Basu is an Indian nuclear scientist. He served as the chairman of the Atomic Energy Commission and Secretary to the Government of India, Department of Atomic Energy (DAE), 23 October 2015 to 17 September 2018. Prior to his assumption of charge as Secretary, DAE, he has served as the Director of Bhabha Atomic Research Centre (BARC), India's premier multi-disciplinary R&D centre. He has also worked as the Project Director of Nuclear Submarine Programme and later as the Chief Executive of the Nuclear Recycle Board in the same institute.