As per the complaint filed by the victim's father, two persons, in connivance with a woman, gangraped his daughter when she was alone in her house, Jansath SHO Dhannanjay Singh said.
The accused identified as Amjad, his wife Nazia Begum and Noruddin, also threatened to kill the girl if she divulged about the incident to anybody, the SHO said.
The girl has been sent for medical examination.
A case has been registered against the absconding trio, police said adding that efforts are on to nab them.