The funeral pyre was lit by Vijaypal Singh, an elder brother of K J Singh.
Apart from the family members, a large number of media- persons and eminent persons from various fields were present.
On behalf of Punjab Chief Minister Captain Amarinder Singh, his Media Adviser Raveen Thukral paid homage to the departed souls.
Veteran journalist Singh and his 92-year-old mother were found killed at their residence here yesterday.
While 64-year-old Singh's throat had been slit, his mother Gurcharan Kaur was suspected to have been strangled at their Phase 3B2 home. The postmortem was conducted today at the Government Civil Hospital, Mohali.
CM's media adviser Thukral said the killers would not be spared and would soon be in the police net.