Have been produced at a variety of venues including, Source Theatre Company, Horizons Theatre, and Charter Theatre (Washington, DC); Potomac Theatre Company (Potomac, MD); 2 Co’s Cabaret (Columbus, Ohio); ShadowBox Cabaret (Newport, Kentucky); the Industrial Arts Theatre (Denver, Colorado); the Samuel French Off-Off Broadway Festival (New York, NY); Theatre at Lime Kiln in (Lexington, Virginia), and most recently at Imagination Stage (Bethesda, MD) where her children’s play, "Junebug and the Reverend" had its world premiere.

In 2002, her one-woman play, "Stretch Marks" (Charter Theatre) was nominated for the Charles MacArthur Award (Helen Hayes) for Outstanding New Play. She has been a recipient of grants from the DC Humanities Commission and the DC Historical Society. She was awarded the H.D. Lewis Award for New Play Development at the 1996 Washington Theatre Festival and was the winner of the Best New Play Award at the 1999 Maryland Theatre Festival. Her monologues have appeared in the Best Women’s Stage Monologues of 1996 and the Best Men’s Stage Monologues of 1998.

Ms. De Silva is currently working on a musical adaptation of "Heidi," with composer/lyricist Joan Cushing, to premiere at Imagination Stage in April 2009.

She lives and works in Washington, DC.