Career
He was a right-handed batsman and right-arm medium-pace bowler who played for Panadura Sports Club. He was born in Colombo. Hewawasam made a single first-class appearance for the team, during the 1999-2000 season, and a single List A appearance the following year.
Hewawasam represented Sri Lanka at the 2000 Under-17 Asia Cup competition, and, later in the same season, played in the domestic Under-23 tournament, at which Panadura finished runners-up to Sebastianites.