Seeking to contact: Sonna Cassim (Wimalaratne)

I am trying to trace the above-mentioned subject, who studied at Greenland College and played rugby for Greenlands College in the mid-sixties. Greenlands became Isipathana M V thereafter and is now a household name in rugby.
He was better known as Sonna Cassim, but his surname was Wimalaratne. He lived off Dickmans Road in Sri Lanka. Leaving School he joined the airlines as a flight steward. I believe he is somewhere abroad. No clue of his whereabouts.
Shall appreciate if we able to track this gent down. Stay well.

Please email Hafi if you have any information re: Sonna via email: hafes7@gmail.com )
Regards.
Hafi Abdeen