Question: When is the composer of film Bangaru Gaajulu 's birthday?
Sentence (from "T. Chalapathi Rao"): Born to Dronavilli Manikyamma and Rattayya in the village of Vuyyuru in the Krishna district of Andhra Pradesh on 22 December 1920, but he was adopted by Tatineni Koteswara Rao and his wife Kotamma.
Relevant evidence: Yes