When Hafiz Ali Khan's 'Raag Darbari' flummoxed President!
"Whatever a son does for his father is never enough," Bachchan said.
Khan said he considers himself fortunate to have had a father, who was kind and compassionate. He also praised the way Bachchan took care of his parents.
Both Bachchan and Khan said they share deep family ties and that their children were good friends.