"At funeral of Raj Kanwar who's first job was my assistant and went on to make many successful films. Still remember him as a kid obsessed with films," the 66-year-old tweeted. Kanwar's last rites took place Sunday.
Kanwar, who died in Singapore after suffering a kidney ailment, gave big breaks to Shah Rukh Khan and Priyanka Chopra with his films "Deewana" and "Andaaz" respectively.
He also directed "Judaai", "Jeet", "Badal" and "Laadla" and his last work was "Sadiyaan" that had Rishi Kapoor, Hema Malini and Rekha in the cast.
Kapur also remembered the day when Kanwar's family members were killed in the riots following prime minister Indira Gandhi's assassination in 1984.
"15 members of Raj Kanwar's family were massacred in riots after Indira Gandhi's assassination. I was with him that day, now at his funeral," he wrote.