心筋梗塞
Abeysekara died on 18 April 2009, at Colombo National Hospital after having been admitted for a heart condition (Myocardial infarction). The BBC stated: "The void that he has left can only be understood if one looks at a washed away painting and understands and realizes that its beauty can never be glorified or recreated again.". His funeral was held over three days in four locations, and remains one of the most attended funerals in the countries history. A memorial service was held at the Chapel of the Hope of the World, Ladies' college Colombo, to commemorate the anniversary of his death.