The Radala refer to an extremely small minority caste in the Kandyan Kingdom of Sri Lanka

Sri Lanka

Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka is a country off the southern coast of the Indian subcontinent. Known until 1972 as Ceylon , Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar and the Palk Strait, and lies in the vicinity of India and the...

. They were the aristocracy

Aristocracy

Aristocracy , is a form of government in which a few elite citizens rule. The term derives from the Greek aristokratia, meaning "rule of the best". In origin in Ancient Greece, it was conceived of as rule by the best qualified citizens, and contrasted with monarchy...

 of the Kandyan Kingdom. After capturing the Kandyan provinces in 1815 with the aid of locals from both maritime and Kandyan provinces, the British created an extensive class of loyal 'New Radalas' in the Kandyan territory to assist them in the administration of that province.
Traditionally, Radala was not a common term used for all officials of the state.