When Mamta came outside, two unidentified men on a bike fired shots at her, police said.
Narendra, who was escorting Mamata, returned fire but sustained bullet injuries, Rohtak Deputy Superintendent of Police Ramesh Kumar said, adding that both succumbed to their injuries in the hospital.
Another lady constable, Sushila, escaped unhurt in the incident. Police booked the girl's father Ramesh Kumar and the two unidentified shooters on charge of murder.
Police said Mamta and her husband were booked for allegedly preparing fake birth certificate for marriage. Mamta was allegedly a minor at the time of her wedding, police said. At the time of Mamta's death, her husband was already in jail for fabrication of certificates.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)