The girl's sister lodged a complaint against the head constable, who is attached to Kamatipura police station here.
The complainant alleged that her younger sister was kidnapped by the policeman in a car, Inspector, Kamatipura police station, S Sudarshan told PTI.
The victim resides near the Kamatipura police station.
Following the complaint, a case of kidnapping under relevant sections of IPC was registered against the constable last night and he was taken into custody.
The girl has been sent to a hospital for medical examination, the police officer said.
However, the police are waiting for the girl's medical report, he said.
"The girl has been sent for medical examination and the report is awaited. Based on the report, we will proceed and alter the sections accordingly," he said.
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