Question: Who wrote the novel that a movie from 1969 is based on which was directed by the same director who also directed the movies "missing" and "Hanna K."?
Sentence (from "Sri Venkateswara Cine Chitra"): They paved way to many other huge movies like, "Devudu Chesina Manushulu", "Ongole Gitta" etc..
Relevant evidence: No