Sonia was born at Tamil Nadu.She is an Indian film actress in Malayalam movies. She debuted, at the age of three, as a child artist in the Malayalam film Ival Oru Naadodi. She continued to appear in many films as a child actor, credited as Baby Sonia. During her childhood she lent her voice for many child artists mainly for Baby Shalini. She got Kerala State Film Award for Best Child artist for the movie Nombarathi Poovu in 1987. She acts in Tamil, Kannada, Telugu movies as well. Her brother Tinku is an actor in Tamil movies