Kerala lies in the  southern part of India. In the east is the state of Tamil Nadu and some parts of the northeast is bordered by the state of Karnataka. The state is divided in to three geographical units; (a) highlands, (b) midlands and (c) lowlands. The slope down from the Western Ghats is the highlands and is at an average elevation of 900 meters and having some peaks of 800 meters in height. The midlands are between the mountains and the low land. This is an area of thick cultivation. The low lands are the low-lying areas in the costal region, river deltas and the backwaters.