Radha Viswanathan (11 December 1934 – 2 January 2018) was an Indian carnatic vocalist and classical dancer.
She was the daughter of freedom fighter and journalist Kalki Sadasivam and stepdaughter of highly acclaimed Carnatic vocalist M. S.
[1] Born on 11 December 1934 in Gobichettypalayam, Tamil Nadu,[2] she was the eldest daughter of Thiagarajan Sadasivam and his first wife, Apithakuchambal.
In April 1982, Radha fell critically ill with tuberculosis meningitis and slipped into coma for three months.
At the age of 83, Radha died in Bangalore in January 2018 due to breathing related complications.