The Simon Commission was a commission made up of 7 members of the British Parliament who were sent to India in 1927. The task given to the commission was to investigate ways in which the system of governing India could be reformed. In historical terms, the most famous member of the commission was Clement Attlee, who would be prime minister when India and Pakistan became independent in 1947.
The commission was extremely controversial, largely because it lacked any Indian members. It conducted its study and published a report recommending, among other things, more representative government for Indian provinces. This became the basis of the Government of India Act of 1935.