CURRENT AFFAIRS

Detailed explanation-1: -India’s first underwater metro service: Kolkata Metro, which started its journey in 1984, is being expanded to cover the whole city and its outskirts. The underwater metro, which will be running through the Hoogly river will connect the twin cities of Howrah and Kolkata.

Detailed explanation-2: -India’s Kolkata Metro Rail (KMRC) is set to complete the development of the country’s first underwater metro service by December 2023. The upcoming project, called East-West Metro Corridor, will pass through the Hoogly river and link Howrah with Kolkata, reported ANI.

Detailed explanation-3: -As far as the cost of construction of the underground metro is concerned, it costs about ₹ 120 crore per kilometre to build the tunnel but the manufacturing cost of the tunnel underwater, which is deep in the Hooghly river costs increased to around 157 crores by per kilometre.

Detailed explanation-4: -Built under the Hooghly River in West Bengal, India’s first underwater tunnel is set to be a blink-and-you-miss-it experience for passengers as trains will cross stretch in just 45 seconds.