The incident took place in Jafarpur Kalan area Tuesday afternoon when the youths dragged the victim into the car and sexually assaulted the victim, they said.
The youths had initially asked the girl to accompany them, and later chased her after she refused their overtures, they said.
The victim, who studies in a government school, was then forcibly dragged into the car, they said.
"The youths raped her in the car. After raping her, they abandoned her...," a senior police official said.
The incident came to light when the victim narrated the incident to her family, who approached police.
A medical examination confirmed sexual assault and a case has been registered. The official said efforts were on to nab the accused, who are also said to be students.