The incident occurred on Sunday when the Metropolitan Magistrate with her family had gone to a ghat in Kalindi Kunj in her car to perform some ritual. When she was about to return, she saw the constable taking pictures of her car.
In her complaint, the magistrate told police that the constable was in an inebriated state and verbally abused her when she asked him why he was clicking pictures.
He allegedly made baseless accusations on seeing an official sticker on the car's windshield and also threatened to frame her in a case of assaulting a policeman.
After a police team reached the spot, the magistrate stepped out of her vehicle and the constable became more violent but stopped after apparently suffering abdominal cramps.
"An FIR has been registered in connection with the matter and the constable has been put under suspension," a senior police official said.