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Mumbai Turns to Desalination as Water Crisis Deepens

Facing persistent supply shortages, Mumbai's civic authorities are accelerating plans to tap the Arabian Sea for desalinated water. The strategy marks a significant shift in the city's water management approach following years of acute scarcity.

LSN India · 12 September 2026

Mumbai's chronic water deficit has prompted municipal officials to pursue large-scale desalination as a long-term solution to meet the metropolis's growing demand. The initiative gained renewed momentum following the severe water crisis of 2009, when the city imposed daily water cuts and rationing measures that disrupted normal life across the densely populated region.

The desalination proposal, first seriously evaluated in the aftermath of the 2009 shortage, represents a departure from the city's traditional reliance on distant reservoirs and river systems. Municipal authorities have identified seawater conversion as a viable means to bridge the widening gap between available supply and consumption patterns in India's financial capital.

The coastal location of Mumbai presents a strategic advantage for such an undertaking, offering direct access to abundant seawater reserves. However, desalination projects typically entail substantial capital investment and ongoing operational expenses, considerations that remain under deliberation by civic planners.

Water scarcity continues to pose challenges for Mumbai's growing population and expanding industrial base. Officials acknowledge that conventional sources alone cannot sustain current consumption rates, necessitating alternative supply mechanisms to ensure the city's sustainable development.