This river often known as Kulallada river, originates from Pasukida mettu, Ramakkal Theri and Rishimalai of Kollam district enters the district at Venmony and has a catchment area of 1155.14 Sq.Kms and a marginable length of 32.19 Km. Passes through Cheriyanad, Puliyoor and Chengannur villages, enters Mavelikkara Taluk at Chennithala, flows through Thriperumthura and pallippad villages and joins Pamba at Veeyapuram.