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CityLab Daily: Why India's Lakes and Rivers Keep Flooding Also today: The rise of the Black sculpture garden, and the definitive guide to balconies.

It is an agreement between India and Pakistan that specifies how the waters of six rivers and their tributaries, called the Indus waters, will be used by the two countries.

India has not yet made full use of the waters of the eastern rivers, according to government documents. It has not built enough reservoirs and canals to divert water flows there, analysts said.