The four accused who have been identified as Naushad, Pravaiz, Kamal Hasan and Nazar are absconding, she said.
The victim said that accused also made a video clip of the incident, police said.
The victim has been sent for medical examination and investigation is on, they said.
In another incident, a 28-year-old widow was raped allegedly by her brother-in-law at Bhaderi village in the district, police said in Muzaffarnagar on Monday.
The victim's husband had died five years ago and she was living with her in-laws.
The victim has been sent for medical examination, police said.