Explanation:

Vidyasagar Setu, also known as the Second Hooghly Bridge, is a toll bridge over the Hooghly River in West Bengal, India, linking the cities of Kolkata (previously known as Calcutta) and Howrah. With a total length of 823 metres (2,700 ft), Vidyasagar Setu is the first and longest cable-stayed bridge in India, as 3rd Narmada Bridge in Gujarat is an extradosed bridge. It was the second bridge to be built across the Hooghly River; the first, the Howrah Bridge (also known as Rabindra Setu) 3.7 kilometres (2.3 mi) to the north, was completed in 1943. Named after the educationist reformer Pandit Ishwar Chandra Vidyasagar, it cost ?3.88 billion to build. The project was a joint effort between the public and private sectors, under the control of the Hooghly River Bridge Commissioners (HRBC).