Upon a complaint from the girl, the trio, in the age group of 19 to 23, was arrested within hours of the incident yesterday, Additional Commissioner of Police C H Pratap Reddy said.
The incident came to light after the victim lodged a complaint in JP Nagar police station alleging she was taken away by an acquainted person, with two of his associates, to an underconstruction building, and sexually abused and gang-raped, he said.
The incident took place between 6.30-8 pm yesterday, he added.
The accused have been booked under the Protection of Children from Sexual Offences (POCSO) Act, he added.
