Manvinder Singh Mindi, brother of murdered gangster Rupinder Gandhi, was on Sunday shot dead allegedly by two unidentified assailants in Rasoolra village in Khanna.
The police said that Mindi (42) was at his home when two assailants opened fire at him with .32 bore pistol.
He was taken to a private hospital in ludhiana where he succumbed to injuries, the police said.
Three bullets hit his head and stomach, Khanna SSP Navjot Singh Mahal said.
Police suspects old enmity behind the killing of Manvinder, who was also facing the charges of attempt to murder, he said.
The SSP said that a manhunt has been launched to trace the assailants. Police said investigations were underway, he said.
Manvinder's younger brother Rupinder Gandhi was killed in 2003 by rival gang members.
Rupinder, on whose life a movie was also made, had several cases, including attempt to murder and assault, registered against him.