Dhammika Siriwardana  Dhammika Siriwardana (15 September 1954 – 15 December 2015) was a Sri Lankan Film, teledrama producer and a businessman. Dhammika was educated at Nalanda College, Colombo. Dhammika was the script writer & director of film Suwanda Denuna Jeewithe that featured famous actors Roshan Ranawana and Pooja Umashankar. Asai Man Piyabanna was a film produced by Dhammika Siriwardana. Few of other films produced by Dhammika are Rosa Kele, Paaya Enna Hiru Se and Mahindagamanaya.