Sukanya made her acting debut in Pudhu Nellu Pudhu Naathu in 1991. She has also learnt Bharatanatyam and has performed worldwide. She entered into the Malayalam film industry with Apaaratha, Telugu debut movie with Peddarikam and debut movie in Kannada with Guru Brahma in 1992. She has to her credit five Best Actress Filmfare awards for her performance in the Tamil films Puthu Nellu Puthu Nathu, Walter Vetrivel, Rajarajan. She has predominantly acted in Tamil, Malayalam and Telugu movies, although she did two roles in Kannada films. She has also composed two devotional albums namely "Azhagu" and "Thirupathi Thirukudai Thiruvizha". She was married to Sridharan Rajagopalan in 2002 in United States and later she got divorced in 2003 and came back to Chennai to resume her acting career from 2003. She also acted in Television serials Anandham, Kadamatath kathanar, Swaami Ayyappan, Jannal and Adhiparasakthi. Her upcoming movie is Muthuramalingam.