Question: How many National Film Awards did this Indian film actor, director, screenwriter, producer, playback singer and lyricist who appeared in Apoorva Raagangal win?
Sentence (from "Apoorva Raagangal"): Apoorva Raagangal (English: "Rare Melodies" ) is a 1975 Indian Tamil-language drama film directed by K. Balachander.
Relevant evidence: No