Manimala River is a 92 km long river in South and Central Kerala. Though the river is a tributary of Pamba River, it is considered a separate river for geographical purposes. It has its origin on the Muthavara Hills on the Western Ghats, in Idukki district of Kerala, India. The river passes through the districts of Kottayam, Pathanamthitta and finally joins the Pamba River at Muttar near Tiruvalla in Alappuzha district.Yendayaar, Koottikkal, Mundakayam, Erumeli, Manimala, Kottangal, Kulathurmoozy, Vaipur, Mallappally, Thuruthicad, Vennikkulam, Kaviyoor, Kallooppara, Niranam, Muttar, Thalavadi, Kozhimukku, pulincunnoo, moncompu and Champakkulam lie on the banks of Manimala River. It's running length is estimated at 92 km. It empties itself into the Vembanad Lake.