[Anirudha Deshpande]

The progressive degeneration and final collapse of the Harappan civilization has been attributed to several factors. It is generally held that calamitous alterations in the course of the Indus and the Ravi rivers led to the desiccation of the country side which ceased to produce food for urban centres. Another reason behind the collapse of Harappan civilization is floods. The floods perhaps derived from violent geomorphological changes in the lower Indus region, leading in turn, to the economic decline of the Harappan settlements. Human skeletons found in Mohenjodaro indicates that city was invaded.