'' (1940) She started her film career in
Srikrishna Tulabharam, in a minor role as Mitravinda in 1935. The film was based on a play by Telugu cinema's first lyricist Chandala Kesava Dasu.
Relangi played a bit role in the movie. She captured the audience with her beauty and played lead roles in films such as
Veerabhimanyu,
Gruhalakshmi and
Malapilla. During his stint as a production director with Vel Pictures, Ramabrahmam felt that she was not fit for acting and rejected her. As she rose in her career, he realised he was wrong and signed her for the harijan village girl Sampalatha in
Malapilla, based on Gudipaati Venkata Chalam's unpublished novelette. Sceptics commented that she was a misfit for such a complex character. But she rendered a scintillating performance in the first half as an illiterate downtrodden village belle and as the literate modern city woman in the later portions. Her next role was as Uthara in Veerabhimanyu (1936) produced by Sagar Movietone in Bombay. Kodavatiganti Kutumba Rao debuted as a screenwriter with this film. In
Vandemataram, Chittoor Subrahmanya Pillai's Madhuranagarilo challanamma bodhu was used as a duet rendered by Nagaiah and Kanchanamala. Under the production of Gemini Movies, Kanchanamala signed a contract for the role of Nagamma in the movie
Bala nagamma which included clause to work only under Gemini movies. During the filming of the movie, she had differences with the director and producer
S. S. Vasan which led to legal entanglement. Unable to work in movies outside Gemini movies and having lost her husband caused despair and led to mental imbalance. She later moved into her sister's place in her hometown Tenali. ==Cultural impact==