The incident took place in Nangloi area late last night and the trio -- Anwar (30), a property dealer, Sandeep (32), a mobile shop owner, and Anish (35), a guard, were arrested today.
The girl had gone out for a walk after dinner when the trio kidnapped her in a car and raped her, police said.
The accused dumped the girl near her house this morning, a senior police official said, adding that she narrated the incident to her family members, who approached police.