Question: What is the date of birth of the director of film Agni Parvatam?
Sentence (from "K. Raghavendra Rao"): His mainstream works such as the 1987 Social problem film "Agni Putrudu", and the 1988 action thriller "Aakhari Poratam", were screened at the 11th and 12th International Film Festival of India respectively in the mainstream section.
Relevant evidence: No