sentences:  Except for an earthen embankment of 1.5 km length which separates the lake from the paddy fields on its southern side, bordering the alluvial plains of the Kallada River, all other sides of the lake are surrounded by hills which are steep and form narrow valleys.Sooranad, Chakkuvally, Kunnathur, Mynagappally, Poruvazhy, West Kallada, Karunagappally, East Kallada are the important places in and around Sasthamcotta.Kallada river has a place in history along with other major rivers.