Mumbai
Water availability is classified as Stress.
Officially documented operating systems include Vihar, Tulsi, Tansa, Lower Vaitarna (Modak Sagar).
Official evidence, one view
City Water Picture
Understand a city's published long-term water position, officially documented supply systems, groundwater context, evidence periods, and the limits of what the records can establish.
These pages do not establish today's household supply, pressure, continuity, or tap-water safety.
Explore five city systems
Operating, historical, proposed, and unproven source relationships remain separate. Where a current operating mix is not proven, JalWater says so plainly.
View Mumbai
Bengaluru
Published availability is Scarcity for 2025 and Absolute scarcity for 2050.
Officially documented operating systems include Cauvery River.
New Delhi
Water availability is classified as Scarcity.
Officially documented operating systems include Upper Ganga Canal, River Yamuna, Bhakra Storage and Yamuna, Bhakra Storage.
Chennai
Water availability is classified as Absolute scarcity.
A current operating source relationship is not proven from the official evidence currently reviewed.
Patna
Water availability is classified as Scarcity.
Officially documented operating systems include Municipal water-supply centres and four headworks.
Why this view is different
Source relationships are proven
A river, reservoir, canal, or scheme appears only when an official primary source connects it to the city system.
Dates and geography stay visible
Historical evidence is never passed off as current, and district evidence is not silently converted into neighbourhood evidence.
Unknown stays unknown
JalWater does not invent source shares, live reservoir conditions, supply hours, or tap-water conclusions to make a page look complete.