Career
Swampillai was born on 9 December 1936 in Kayts on the island of Velanaitivu in northern Ceylon. He was educated at Saint Patrick"s College, Jaffna. Swampillai was ordained as a priest in December 1961.
In March 1983 he became Bishop of Trincomalee-Batticaloa.
He became Bishop of Trincomalee after the creation of the Diocese of Batticaloa in July 2012. Swampillai resigned on 3 June 2015.