On Skklis are actually a caste of telugu origin and not Tamil as usual you are incorrect. They migrated to the Tail country . Any way if Tamils are skillis over 90% of teh SInhalas are Sakilis too as most of them are descended from recent South Indian Tamil migratns . Read teh history and origins of teh Sinhlas castes of Karawa Durawe Salagama ,Hunu Beravayo Demalagedera etc.The Kandyan Radalas and the Low country Sinhala Aristocracy.