What Were The Causes Of The Fall Of The Indus Valley Civilization?

As prosperous and prolific as the Indus Valley civilization was, there lifestyle and their system was not particularly impeccable.  There were major flaws that eventually contributed towards the decline of their era, the end to their opulent legacy.  But it was not just their own faults that led them towards their ultimate fiasco.  It was also the role of nature that went a long way in marking the outset to their disaster.  For starters, the course of the Indus River had altered as well as the weather patterns were changing too, which was something that the people were incapable to deal with as they had no contingency plan.  Moreover invasions from both the north and the south was another factor that the Indus Valley people were not equipped enough to deal with.  Also the change in climatic conditions, which was a cause of the increasing spread of desert conditions also contributed to the final end to one of the greatest ancient civilizations.