The Indian Space Research Organisation is the national space agency of India. It operates as the primary research and development arm of the Department of Space (DoS), which is directly overseen by the Prime Minister of India while the Chairman of ISRO also acts as the executive of DoS. ISRO is primarily responsible for performing tasks related to space-based operations, space exploration, international space cooperation and the development of related technologies. ISRO is one of the six government space agencies in the world that possesses full launch capabilities, can deploy cryogenic engines, can launch extraterrestrial missions and operate a large fleet of artificial satellites. ISRO is one of the four government space agencies to have soft landing (unmanned) capabilities.

The chairman of the Indian Space Research Organisation is the statutory head of the Indian Space Research Organisation (ISRO). The officeholder is a secretary to the Government of India and an executive of the Department of Space (DOS) which directly reports to the prime minister of India.