Phoolan Devi, popularly known as the Bandit Queen, was an Indian dacoit (bandit) who became a politician, serving as a member of parliament until her assassination. She was a woman of the Mallah subcaste who grew up in poverty in a village in the state of Uttar Pradesh, where her family was on the losing side of a land dispute which caused them many problems. After being married off at the age of eleven and being sexually abused by various people, she joined a gang of dacoits. Her gang robbed higher-caste villages and held up trains and vehicles. When she punished her rapists and evaded capture by the authorities, she became a heroine to the Other Backward Classes who saw her as a Robin Hood figure. Phoolan Devi was charged in absentia for the 1981 Behmai massacre, in which twenty Thakur men were executed, allegedly on her command. After this event, the Chief Minister of Uttar Pradesh resigned, and calls to apprehend her were amplified. She surrendered two years later in a carefully negotiated settlement and spent eleven years in Gwalior prison, awaiting trial.

Dacoity is a term used for "banditry" in the Indian subcontinent. The spelling is the anglicised version of the Hindi word डाकू (daaku); "dacoit" is a colloquial Indian English word with this meaning and it appears in the Glossary of Colloquial Anglo-Indian Words and Phrases (1903). Banditry is criminal activity involving robbery by groups of armed bandits. The East India Company established the Thuggee and Dacoity Department in 1830, and the Thuggee and Dacoity Suppression Acts, 1836–1848 were enacted in British India under East India Company rule. Areas with ravines or forests, such as Chambal and Chilapata Forests, were once known for dacoits.