The accused -- Kuldeep, Abhilakh and Sunil -- of a nearby village took the girl to a jungle last evening, gagged her and then assaulted her sexaully, police said.
The medical examination of the girl has confirmed rape, police said.
The girl later reach home and reported the matter to her family, who then lodged an FIR in this connection.
All the three accused are cousins and while Kuldeep was arrested today, efforts are on to nab the other two, police said.