1 month ago
Mumbai Lakes Overflow, Yet City Faces Water Shortage
Mumbai needs a lot of water every day, about 4,665 million litres.
Its reservoirs can only give 4,100 million litres, so the city is short by 565 million litres.
Even though the lakes are full now, the city still has a problem because it depends on rain that can be unpredictable.
The city’s water pipes are old and leak a lot, losing about 900 million litres a day.
To fix this, the city is building a big plant in Manori that will turn sea water into drinking water, costing over 4,000 crore rupees.
The plant will start with 200 million litres a day and could grow to 400 million litres.
The city also plans a tunnel to bring that water to the city.
Experts say that by 2041, Mumbai could need 6,424 million litres more than it can get, so the city is trying to add new ways to get water.
Mumbai’s reservoirs are now at 88% capacity after heavy monsoon rains.
The city still needs 4,665 MLD daily, but reservoirs supply only 4,100 MLD, leaving a 565 MLD deficit.
BMC is investing over Rs 4,000 crore in a Manori desalination plant and a Rs 2,241 crore tunnel to connect it.
Despite overflowing lakes, shortages arise from monsoon dependence, aging pipelines, and high leakage losses (~900 MLD/day).
Long‑term projections show a 6,424 MLD demand‑supply gap by 2041, prompting plans for desalination and advanced treatment.
- Who
- Brihanmumbai Municipal Corporation (BMC)
- What
- Mumbai’s water supply situation and a new desalination project
- Where
- Mumbai, India
- When
- July 2026
- Why
- Overreliance on monsoon, aging pipelines, and growing demand
Key facts
- Daily water demand
- 4,665 MLD
- Reservoir supply
- 4,100 MLD
- Daily deficit
- 565 MLD
- Desalination plant capacity (phase 1)
- 200 MLD
- Desalination plant cost
- Rs 4,077 crore
- Tunnel cost
- Rs 2,241 crore
- Projected 2041 demand‑supply gap
- 6,424 MLD



