India’s first underwater metro to be launched in Kolkata

Kolkata Metro Rail Corp. expects to complete its East-West project, which runs partly under the city’s iconic Hooghly river by March 2022 after a delay of several years doubled costs. About 40% of total transport demand will be tackled by these two metro services. It will be a relief for environmental pollution and the city should be much more decongested.

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The new line is expected to carry about 9,00,000 people daily, — roughly 20% of the city’s population — and will take less than a minute to cross a 520-meter underwater tunnel. Depending on the time of day, it takes some 20 minutes to use the ferry and anywhere upward of an hour to cross the Howrah bridge.