S. Janaki (Telugu:ఎస్. జానకి, Kannada: ಎಸ್. ಜಾನಕಿ, Tamil:எஸ். ஜானகி, Malayalam: എസ്. ജാനകി) (born April 23, 1938) is an Indian singer. She has sung in many Indian languages including Telugu, Tamil, Malayalam, Kannada and Hindi. Janaki is also a lyricist and a composer. She along with S P Balasubramanyam is the most popular singing combination in south India.
Who is most successful south Indian actress in bollywood?