Section 391 of IPC 1860: Dacoity
Dacoity-Indian Penal Code
When five or more persons conjointly commit or attempt to commit a robbery, or where the whole number of persons conjointly committing or attempting to commit a robbery, and persons present and aiding such commission or attempt, amount to five or more, every person so committing, attempting or aiding, is said to commit œdacoity.