Concept:
Underwater tunnels represent a significant engineering feat, necessitating advanced structural protection against high water pressure and sediment conditions.
Step 1: Locating the project site.
The underwater metro project is part of the Kolkata Metro network, designed to provide seamless connectivity across the river dividing the metropolitan area.
Step 2: Identifying the specific waterway.
The tunnel was engineered and constructed beneath the Hooghly River, making it the first of its kind in India.
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River for India's first underwater metro = Hooghly
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Hooghly
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