Photo: Bhajish Bharathan · CC BY-SA 4.0
Excavation · c. 3000–1500 BCE; excavated 1990–2005

The reservoirs of Dholavira

Found
Khadir Bet island in the Rann of Kutch, Gujarat; found in 1967–68 by J. P. Joshi, excavated by R. S. Bisht of the ASI
Kept at
In place; UNESCO World Heritage Site since 2021

A Harappan city in a dry land that lived by catching every drop: dams on two seasonal streams fed a chain of reservoirs cut into the rock around the town.

What it says

Two streams, the Mansar and the Manhar, were dammed and led by channels into reservoirs set inside the city walls. The largest, on the east, is about 73 m long and 29 m wide, cut deep into the bedrock with steps down to the water. Drains and stone-lined channels connected the citadel, the middle town and the lower town.

What it proves

It is among the oldest planned water-harvesting systems in the world, and the forerunner of Gujarat’s long craft of tanks and stepwells.

Evidence for