Aliyar is one of the tributaries of the river Kannadipuzha. Kannadipuzha is one of the main tributaries of the river Bharathapuzha, the second-longest river in Kerala, south India. It originates from aliyar dam in aliyar near Pollachi in Tamil Nadu
Coordinates: 10°37′N 76°57′E / 10.617°N 76.950°E