A 15-year-old girl was allegedly raped by a minor in the campus of a school in west Delhi’s Rohini.The 17-year old boy , who is a student of class 10, allegedly raped the class 9 girl inside the school located in Sector 9 in Rohini on November 25.However, the parents got to know only on Tuesday, and subsequently filed a police complaint at the Prashant Vihar police station.