After gaining his degree from Oxford University, at the age of 25 Michael Carritt was given a job in Mumbai with the Indian Civil Service of the British colonial government in November 1930.

[1] Michael Carritt was an avid reader of Marxist literature, however the importing of books promoting communism were banned by the British by General Communist Notification of 1932 under the Sea Customs Act.

[4] Eventually Michael Carritt was promoted to the position of Special Officer in the Political Department of Government in Calcutta,[4] where he often held meetings with communist activists in the city's open parks.

[2] In 1934 his commitment to the Indian communist and pro-independence movements deepened and he briefly returned to England to meet with the League against Imperialism who gave him activist contacts in India and instructions on how to support them.

[8] Using diplomatic channels, Michael Carritt was able to import into India large quantities of banned nationalist literature, and became an associate of Indian communist A.K.

[1] During the World War II, Michael Carritt helped develop a group of Indian communist students living in Britain, and continued to write about India until its independence from the British Empire.

[2][8] During the Second World War, Michael Carritt teamed up with John Saville to campaign in support of Arthur Atwood and other people involved in the Drigh Road RAF Mutiny.

[2][8] In 1980 Michael Carritt was contacted by researchers who wanted to know more about his time in India, and it was discovered that the British Empire had suspected him of being sympathetic with the Indian liberation struggle.

[5] In 1986 Michael Carritt's autobiography was published, titled A mole in the crown: Memoires of a British official in India who worked with the communist underground in the 1930s.

In 1940, some documents were found in a trunk at Berkshire, buried in the garden of his father Professor E. F. Carritt, MA, Fellow of University College, Oxford.