Kambayanatham Rangaswami Kanakavalli, known professionally as K. R. Chellam, was an Indian actress who appeared in Tamil language films.

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.