Question: What is the date of birth of the composer of film Rajadurgada Rahasya?
Sentence (from "G. K. Venkatesh"): Gurajada Krishnadas Venkatesh (GKV) (21 September 1927 – 13 November 1993) was a prominent composer of film music in Kannada cinema during the 1960s, 1970s and until the late-1980s.
Relevant evidence: Yes