Kaushal Yadav, son of the Zila Panchayat Chairman Ganesh Yadav, was among the five arrested in the case, they said.
According to the complaint, two girls claimed that their friend identified as Rahul Upadhaya took them to a restaurant on Thursday afternoon.
The girls claimed that Kaushal and his three friends met them at the restaurant.
When the girls requested him to drop them home, they took them to a room in Ukharra village, where Kaushal allegedly raped one of them, police said, four others who were present in the room have been alleged of molestation.
The girls did not return home on Thursday night and reported the matter to Tajganj police last morning, SSP Subhash Chandra Dubey said.
Meanwhile Ganesh Yadav said he had been made a victim of a conspiracy and that he had himself taken his son to the police station.