Kolkata Underwater Metro | Know how Kolkata is Building Tunnel Under Water
Kolkata: Two top-order tunnel boring machines, nicknamed Rachna and Prerna, are digging India's first ever under-the-river Metro tunnels in Kolkata at full speed. If...
Underwater Metro | India’s first underwater tunnel (Howrah-Kolkata Metro) to be completed soon
Kolkata: The tunnelling work under the Hooghly river, the first such underwater project in the country, to provide metro connectivity between Howrah and Kolkata...
Underwater Metro | Work begins on India’s 1st underwater metro tunnel in Howrah
Kolkata: Construction of the country’s first underwater metro tunnel commenced on the banks of Hooghly river in Howrah of West Bengal on Friday.A pair of...




