Coimbatore: A four-year old girl was allegedly raped by a youth in nearby Tirupur district and he has been arrested, police said. Abbas (22) of Devarayan Palayam village had yesterday taken the girl to a bushy area in the locality and sexually assaulted her. He had been arrested on charges of rape and causing injury to the girl, police said on Monday. The girl with serious injuries, including in the head, had been admitted to a private hospital here.