Raavu Balasaraswathi Devi is an Indian singer and actress who performed from 1930 to the 1960s in Telugu and Tamil cinema. She was the first light music singer on All India Radio and the first playback singer in the Telugu cinema.

Balayogini is a 1937 Indian film made in Tamil and Telugu languages. It was directed by K. Subramanyam. It is one of the earliest Tamil films to be set in a contemporary social setting and to advocate reformist social policies. This film is considered to be first children's talkie film of South India.