Aruna Manathunge started to practice Samatha and Vipassana at the age of 19 years in 1976. He worked in the Pharmaceutical Industry. His early retirement in 2008 at the age of 52 years gave him more opportunities to practice and help in the propagation of Dhamma. Aruna started the Dhamma website https://damsara.org/ in 2012 as a further service towards Buddha Dhamma