Dilini began her studies in the art field as a performance artist. She studied Kandyan dancing and drama, for which she earned a degree with honors from the University of Visual and Performing Arts in Sri Lanka. Later, Dilini focused towards painting. Her painting style tends to be highly detailed, in color and decorative. She paints colorful and imaginary worlds with flowers, houses and trees etc. She explains that her work tends to get a lot of influence from nature and that she is inspired by the master Austrian artist, Gustav Klimt and William Morris.
After graduating, Dilini served as a dancing teacher at Colombo International School in Kandy for a period of four years. While teaching dancing, she was also a visiting lecturer at the Panideniya English Teachers' Training College. At present she is a full time artist as well as a designer. As a designer she creates wooden fashion jewelry.
Beyond painting, dancing and acting, Dilini has launched a children's book called "Hemidiriya". She has also done illustrations for children's books by other authors in Sri Lanka.