According to the complaint filed by the victim, a man entered her house at Salarpur village in Dankaur area and took her gold chain away at gunpoint.
The victim, Manju and her daughter were alone in the house when the incident happened, they said, adding that the culprit fled after the crime.
An FIR was lodged in the case at Dankaur police station, police said.
The robber is at large but will be nabbed soon, they added.