The girl complained that Additional Superintendent of Police (SP) Sanjay Barkund had hit her and her fiancé with a belt when they had gone to Ahmednagar to register a complaint on January 9.
A complaint has been filed against Barkund in this connection, police said.
"We have registered a complaint against Additional SP Sanjay Barkund in Koregaon police station in Pune and sent a report to Ahmednagar SP Sunita Salunke in this regard. The girl was admitted to Sassoon Hospital for treatment," Shivaji Kamble, senior Police Inspector of Koregaon Park police station said.
The 18-year-old girl from Uttar Pradesh was going to Shirdi temple in a four-wheeler along with her fiance living in Pune on January 3, when they had halted at Ahmednagar.
However, the girl was allegedly kidnapped by four unidentified persons, including a woman, when her fiance had gone to the washroom, police said adding the girl was allegedly taken to a prostitution den in Shirpur in Dhule district and beaten by brothel-keepers when she refused to give in to their demands.
She reportedly sought help from a brothel customer who called up her fiance and informed him about her on January 4. Her fiancé contacted Pune police through local activists and the girl was finally rescued by Dhule police on January 5.
The case was to be transferred to Ahmednagar police as the kidnapping had taken place in their jurisdiction. However, the victim later complained that instead of registering the case, the senior policeman beat them up.