The deceased, Subeg Singh, was a retired army personnel, they said.
Subeg Singh and his son Charanjit Singh exchanged heated arguments. Subeg Singh asked him to quit his alleged drug-addiction, police officials said.
In a fit of rage, Charanjit allegedly hit his father with a sharp edged weapon and fled, they said.
Subeg Singh was admitted to a hospital where he succumbed to injuries, they said.
A case was registered at the Makhu police station and a hunt was on to nab the accused, they said.