<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Indus Valley Civilisation (IVC), or Harappan Civilisation, was a Bronze Age civilisation (3300--1300 BCE; mature period 2600--1900 BCE) mainly in the northwestern regions of South Asia, extending from what today is northeast Afghanistan to Pakistan and northwest India . Along with Ancient Egypt and Mesopotamia, it was one of three early cradles of civilisations of the Old World, and of the three, the most widespread . </P> <P> Aridification of this region during the 3rd millennium BCE may have been the initial spur for the urbanisation associated with the civilisation, but eventually also reduced the water supply enough to cause the civilisation's demise, and to scatter its population eastward . </P>

When and where did the harappan civilization flourished