Question: Which actor in Pati Patni Aur Woh, received the National Film Award for his debut role as a child artist in his father Raj Kapoor's 1970 film "Mera Naam Joker"?
Sentence (from "Aag (1948 film)"): The film marked the debut of Raj Kapoor as producer and director and was the first film produced by his R.K. Banner.
Relevant evidence: No