"There is no adequate or special reason to impose lesser sentence than the minimum sentence of 10 years as provided," the judge said, also imposing an additional fine of Rs.15,500 on Vijay and Rs.10,000 each on Anil and Vinay.
Accused Vijay had met the girl in June 2010 when she was going to the market. He forcibly caught her and took her to a vacant room where he raped her. His friends Vinay and Anil then took turns to rape the girl.
The minor told about the incident next day to her mother who then reported the matter to the police.
The trio and the girl were residing in the same colony of Karala village in northwest Delhi.
The trio had alleged that they were falsely implicated in the case.