The three accused, including the eldest brother Sanjay alias Takesh Manohar Verma (21), all residents of Indira Nagar slums in Ganeshpeth area, stormed into the minor girl's house when she was alone yesterday.
They allegedly took turns to rape the girl and then fled from the spot, police said.
The girl narrated the incident to her father who runs a paan kiosk. The victim's parents subsequently lodged a case at Ganeshpeth police station.
Later, the girl was sent for a medical examination which confirmed rape, police said.
The accused have been booked under section 376 (rape) of IPC and relevant sections of Protection of Children from Sexual Offences (POCSO) Act, police added.
