Divisional secretariats of Sri Lanka

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 331 divisional secretariats in Sri Lanka. 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, the divisions are administered by a divisional secretary, and are known as D.S. divisions. The 331 divisions are listed below, by district: