sentences:  It is believed that Paleolithic people lived around this river in the Thenmala region.This was around 10,000 years ago.Later, the "Ay" kingdom also flourished in or around this region.kallada is a river whose serenity lies in its stillness,the pythonic pace with which it embraces the muddy riversides.Emanate from here are the rustic simplicity and emotionality of village populaces, west kallada and east kallada.