Question: What is the date of death of the director of film Post Master?
Sentence (from "G. V. Iyer"): His most critically acclaimed films were "Bhagavad Gita" (1993), which won the National Film Award for Best Feature Film and was nominated for Best Film at the Bogotá Film Festival and Swami Vivekananda (1998), for which Mithun Chakraborty won the national award for Best Supporting Actor.
Relevant evidence: No