Some of Nallennai's notable films include "Rangoli" (1956), "Sengottuvalan" (1958), and "Thangathalli" (1960). These films showcased her remarkable range as an actress and her ability to portray complex characters with ease. Her collaborations with renowned directors and actors of the time, such as K. Somu and S. S. Rajendran, resulted in some of the most memorable films of Tamil cinema's golden era.