Question: Who is the child of the director of film Urakkam Varaatha Raathrikal?
Sentence (from "M. Krishnan Nair (director)"): His second son is Harikumar, while his youngest son Sreekumar Krishnan Nair is a film director best known for directing "O' Faby", India's first live-action/animation hybrid feature film.
Relevant evidence: No