Question: When is the director of film Oru Thaai Makkal 's birthday?
Sentence (from "Oru Thaai Makkal"): Oru Thaai Makkal  is a 1971 Indian Tamil-language romantic comedy-drama film, directed by P. Neelakantan, starring M. G. Ramachandran, with M. N. Nambiar, Jayalalithaa and R. Muthuraman.
Relevant evidence: Yes