This documentary, made by NHK (Japan) and Canadian TV, looks at the early Indus Valley civilisation, focusing on one of the lesser known sites at Dholavira, in what is now Gujarat, in western India. A well-done professional introduction to the city of Dholavira and an explanation of the irrigation and aqueduct system, collection of rain water and water reservoirs, with a CGI reconstruction of the city by NTV.
The Indus Valley Civilisation is one of the three oldest urban civilisations, along with Egypt and Mesopotamia. Ancient India during the Harappan era had one of the largest populations in the ancient world, far greater than the Middle East or Europe. The culture dates back as far as 7000 BC. They were masters of civil engineering, having irrigation systems, drought and famine management strategies, flush toilets, waste water disposal and organized housing for over five million inhabitants.