The woman was found in an unconscious state in Mayur Vihar area in east Delhi around 2.43 am on Friday.
Police said when the victim was found, she was under the influence of alcohol. They received a call from a passerby who spotted the woman.
"She told us that she had boarded the accused's car in which she was gang raped in south Delhi's Saket area," an official said.
Police added that the woman did not know the accused and had jumped out of the car in Mayur Vihar area.
"We have arrested all the four accused, who are residents of Mayur Vihar area," police said.