The districts are further divided into administrative sub-units known as divisional secretariats. They were originally based on the feudal counties, the korales and ratas. Divisional secretariats are the third-level administrative divisions of the country and there are currently[as of?] 331 divisional secretariats in Sri Lanka.[1]
They were formerly known as D.R.O. divisions, after the divisional revenue officer. Later the D.R.O.s became assistant government agents and the givisions were known as A.G.A. divisions. Currently,[when?] the divisions are administered by a divisional secretary, and are known as D.S. divisions.
The 331 divisions are listed below, by district: