Befriending a stranger on Facebook proved costly for a 31-year-old man.
Most of the victims are youngsters and educated middle-aged people, they said.
Police have taken eight people into custody for the crime including one of her relatives and have launched a hunt for the others.
Accused Nitu Rawal allegedly befriended the victim Suresh Chhabriya, started chatting and decided to meet him in a garden where a gang of four thrashed him claiming that they are her brothers.
The minor was apprehended and he confessed to have raped the girl, Kumar said. The duo had become friends on Facebook, he added.
The missing 24-year old youth, Amarjit Singh, was deported to India today from Pakistan as he had gone to the neighbouring country on the pretext of going on a pilgrimage during Baisakhi celebrations.