The incident took place on September 25 on the Alhaypur- Gonga road under the jurisdiction of the Raya police station, they added.
According to the FIR lodged by the woman, she was dragged into a car by her ex-husband, a resident of Mathura, and three of his associates when she was returning home after work on September 25.
She alleged that the four men took turns to rape her.
The ex-husband of the woman and one of his accomplices have been arrested, the police said, adding that a hunt was on to nab the other two accused.
According to the woman, she got married on February 14, 2014. “I was tortured for dowry and thrown out of the house on November 22, 2016,” she told the police.