Radha hails from Kallara in Trivandrum District Kerala. She is married to a successful hotelier Rajasekaran Nair and has two daughters. Since her marriage she has settled in Mumbai and is into restaurant business with her husband. She takes classical dance lessons alongside her eldest daughter. She has also recently performed at the famous Chidambaram Natarajar temple. Her sister Ambika is also an actress. Her daughter Karthika Nair started her career as an actress with Josh movie starring opposite to Naga Chaitanya and doing Malyalam film called Makaramanju and KO tamil film with Ayan director Anand.
Radha was spotted by director Bharathiraja and was cast as a young teenager, and cast in Alaigal Oivathillai in 1981 opposite then newcomer Karthik.
Tamil Films of Radha
1990 Sigaram S.P.Balasubrahmanyam
1990 Manaivi Oru Manickam Arjun
1989 Raajadhi Raaja Rajinikanth, Nadiya Moidu R.Sundarajan
1987 Aanand Prabhu C.V.Rajendran
1987 Jallikkattu Sivaji Ganesan, Sathyaraj
1987 Kaadhal Parisu Kamal Haasan, Ambika A.Jagannathan
1987 Ninaive Oru Sangeetham Vijaykanth
1986 Raatshashan Chiranjeevi, Annapoorna, Nagendra Babu Kondanadarama Reddy.A.
1986 Amman Koil Kizhakkaalae Vijayakanth R.Sundarajan
1986 Mela Thiranthathu Kadhavu Amala, Mohan R.Sundarajan
1985 Idaya Kovil Mohan, Ambika Mani Ratnam
1985 Muthal Mariyathai Sivaji Ganesan, Sathyaraj Bharathi Raja
1985 Nalla Thambi Karthik Sp.Muthuraman
1984 Naan Mahaan Alla Rajinikanth
1984 Oru Kaidiyin Diary Kamal Haasan, Revathy Bharahti Raja
1983 Paayum Puli Rajinikanth, Manorama Sp.Muthuraman
1983 Sivappu Sooriyan Rajinikanth, Manorama, Saritha V.Srinivasan
1983 Thoongathey Thambi Thoogathey Kamal Haasan Sp.Muthuraman
1982 Enkeyo Ketta Kural Rajinikanth, Ambika Sp.Muthuraman
1982 Kadhal Oviyam Kannan Bharathi Raja
1982 Gopurngal Sayvathillai Suhasini, Mohan Manivannan
1982 Ilanjodigal Karthik Muthuraman Ramanarayan
1982 Kanney Raadha Karthik Muthuraman
1982 Valibamey Vaa Vaa Karthik Muthuraman Bharathi Raja
1981 Alaigal Ooivathilai Karthik Muthuraman Bharathi Raja
1981 Tik Tik Tik Kamal Haasan, Madhavi Bharathi Raja
