Bengaluru Faces Severe Groundwater Depletion and Urban Flooding Risks
Bengaluru Faces Severe Groundwater Depletion and Urban Flooding Risks
IN · Published Oct 18, 2026
• A recent study published in the World Water Policy journal highlights a critical groundwater crisis in Bengaluru.
• The city is extracting groundwater at 217% of its annual extractable resource, with 4,627 hectare-metres (ha.m) drawn in 2023 against an available 2,128 ha.m.

Impact & Risks

The overextraction of groundwater and reduced rainwater absorption pose severe risks to Bengaluru's water security. Peripheral areas relying on borewells face heightened vulnerability due to inadequate municipal water supply. Urban flooding is becoming more frequent as rainwater fails to infiltrate the ground, instead contributing to rapid surface runoff. The degradation of natural drainage systems and loss of permeable surfaces exacerbate these issues, leaving the city at risk of both water scarcity and flooding.

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