Question: What is the date of birth of the director of film Coolie No. 1 (1991 Film)?
Sentence (from "Coolie No. 1 (1991 film)"): Rao Gopal Rao, Sharada, Kota Srinivasa Rao, Paruchuri Venkateswara Rao, Mohan Babu, and
Relevant evidence: No