Jatinder Singh shot his father Gurdeep Singh twice leaving him dead on the spot at his residence yesterday, police said.
Dispute in the family over some issue led to the incident, police said.
Deceased Gurdeep was living separately on first floor of the house and his wife with other family members was living on the ground floor.
The accused Jatinder was "upset" over frequent fights and ultimately on Friday took the extreme step, police said.
Jatinder managed to escape.