The Indian mountain chain is composed of two parts: the Ghat and the Ghaut. The Ghat is a series of steps leading down to a body of water, usually a river or lake. The Ghaut is a steep-sided ravine or gorge that is formed by the erosive action of a river. Both the Ghat and the Ghaut are important features of the Indian mountain chain, which is one of the world's most geologically diverse regions.