One of Roja's most notable works is the 2005 film "Kamakathai Ra." Directed by Arivazhagan, the film is a comedy-drama that tells the story of a poor village where the residents are struggling to find a solution to their water scarcity problem. Roja plays a pivotal role in the film, portraying a strong-willed and determined woman who takes it upon herself to find a solution to the village's problems.