The incident triggered protests in the area with villagers alleging police apathy following which an FIR was registered against seven persons including constables Sarvesh Yadav and Rakshapal Yadav, who were suspended.
One of the accused Pappu Yadav has been arrested while others are still absconding, Superintendent of Police, City, Man Singh Chauhan said.
As soon as the news spread, villagers gathered at the site and claimed that police had refused to register an FIR last night. They alleged that the girls were gangraped before they were hanged by the attackers.
Villagers blocked the Ushait-Lilawan road, where they kept the bodies, and demanded suspension of all the policemen posted in Ushait police station.
Later, police controlled the situation and convinced the villagers to lift the blockade.
Two other accused are Brijesh and Awadhesh while two others are unidentified, Chauhan said.
Police are awaiting the postmortem report of the two girls.