Manawadu suffered head injuries when a wooden beam fell on him at his private property in Delkanda.
Major General Sumith Manawadu had been inspecting the construction site when the accident took place.
Major General Sumith Manawadu drew the spotlight when he arrested former Presidential candidate Sarath Fonseka following the 2010 Presidential elections.
He was also a Sri Lankan High Commissioner to Malaysia. (Colombo Gazette)