The river begins as the Agra Oya, in the Horton Plains.

The river is approximately 70 km (43 mi) long and drains a basin of about 58,534 ha (226 square miles).

The river flows through a traditional area of ancient villages and tea plantations.

The river was dammed between 1979 and 1985 as part of a hydro-electric project within the Accelerated Mahaweli Ganga scheme.

This article related to a river in Sri Lanka is a stub.