CURRENT AFFAIRS

Detailed explanation-1: -Notes: Kolkata Metro Rail Corporation and a private engineering firm Afcons jointly completed India’s deepest underground ventilation shaft. The ventilation shaft is 43.5m deep and is part of the East West Metro Line of Kolkata.

Detailed explanation-2: -The ventilation shaft, which is 43.5m deep, was completed jointly by Kolkata Metro Rail Corporation (KMRC) and Afcons, a private engineering company. Such shafts are not only used to provide ventilation to the tunnels, but also for evacuation during an emergency.

Detailed explanation-3: -It is the deepest metro station in India. To the east, the station connects to Mahakaran station in Kolkata through India’s biggest under-river metro tunnel beneath the Hooghly river; whilst to the west the adjacent station is Howrah Maidan. The station is expected to be opened by December 2023.

Detailed explanation-4: -As of January 2023, it has three operational lines, a 31.36 km (19.49 mi) line from Dakshineswar to Kavi Subhash, a 9.1 km (5.7 mi) line from Salt Lake Sector V to Sealdah, and a 6.5 km (4.0 mi) line from Joka to Taratala, for a total of 46.96 km (29.18 mi). Three other lines are in various phases of construction.

Detailed explanation-5: -Kolkata Metro was the first Indian metro that started its journey in the year 1984 from Esplanade to Bhowanipur. It initially covered a distance of 3.4 KM. The Kolkata Metro is the first underground metro rail system in India.