Yamuna made her debut in film in a lead role through Kannada film
Modada Mareyalli (1991) alongside
Shiva Rajkumar. She acted in over 50 Kannada and Telugu movies as the female lead. She shot into fame in 1989 with award-winning Telugu film
Mouna Poratam which is based on the real-life story of Sabita Badhei, which gained massive media coverage. Yamuna played the role of Durga who is betrayed by a government officer and fights for her conjugal rights, seeking marital recognition to give proper identity to her illegitimate child. Later she played one of the leads opposite Vinod Kumar in the successful film
Mamagaru. In the 1990 film
Puttinti Pattu Cheera, she played the role of an unlucky daughter who is harassed by her in-laws. She also played the lead role in
Erramandaram. She also acted in Kannada films with
Siva Rajkumar and
Ravichandran. After her marriage, she took a break from acting. After the break she started acting in TV serials. She appeared in the TV series
Anveshitha which was broadcast on
ETV. == Allegations ==