The Department of Atomic Energy was established on August 3, 1954 with headquarters at Bombay and a Branch Secretariat at New Delhi. The functions of DAE emanate from the following mandate:
- Increasing the share of nuclear power through deployment of indigenous and other proven technologies, and also develop fast breeder reactors and thorium reactors with associated fuel cycle facilities.
 - Building and operation of research reactors for production of radio isotopes and carrying out radiation technology applications in the field of medicine, agriculture and industry.
 - Developing advanced technologies such as accelerators, lasers, supercomputers, advanced materials and instrumentation and encouraging transfer of technology to industry.
 - Support to basic research in nuclear energy and related frontier areas of science, interaction with universities and academic institutions, support to research and development projects having a bearing on DAE’s programme and International co-operation in related advanced areas of research and
 - Contribution to national security.