The cities became overcrowded, with houses built on top of houses. Important buildings like the Great Bath at Mohenjo-Daro were built over. People stopped clearing the drains and they became blocked.

The cities became overcrowded, with houses built on top of houses. Important buildings like the Great Bath at Mohenjo-Daro were built over. People stopped maintaining the drains and they became ...

John Hubert Marshall, the late British archaeologist, who was instrumental in excavations of Harappa and Mohenjo-daro sites of Indus Valley Civilization which paved the way for the Dravidian links.