The incident took place in Vasant Kunj area of South Delhi last evening when one of the accused, who was known to the victim, took her to an isolated place on some pretext.
"He was soon joined by three of his friends who then took turns to rape her. The accused allegedly also threatened her of dire consequences if she revealed the incident to anyone," said a senior police official.
The girl somehow informed the police about the incident which instantly swung into action and nabbed the juvenile. His other two accomplices, identified as Sandeep (25) and Ashish (20) were arrested on his instance from the same area, police said.