Current Affairs - Places - Discussion

Discussion Forum : Places - Latest Current Affairs (Q.No. 1559)
1559.
India's First Underwater Metro Tunnel connect which of the following cities?
Howrah & Assam
Howrah & Kolkata.
Bihar & Assam
Kolkata & Bihar
Answer: Option
Explanation:
A gigantic Tunnel Boring Machine is being used to build a underwater tunnel in the river Hooghly which connect Howrah with Kolkata. The tunnels are being dug at a depth of 30 metres below the earth's surface and 13 metres below the riverbed. The 520-metre tunnels under the river are part of the 10.8 km underground stretch.
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