
Kolkata Metro
Rapid transit system in Kolkata, West Bengal, India

Rapid transit system in Kolkata, West Bengal, India
The Kolkata Metro is a rapid transit system serving the city of Kolkata and the Kolkata Metropolitan Region in West Bengal, India. Opened in 1984, it is the first rapid transit system in South Asia. It has 5 colour-coded lines with 58 operational stations with a total length of 73.42 km (45.62 mi), making it India's fourth largest and fourth busiest metro rail system. The system has a mix of underground, at-grade, and elevated stations using both broad-gauge and standard-gauge tracks. It operates on a 750 V DC Third rail system. Trains operate between 06:30 and 22:44 IST. The Kolkata Metro was initially planned in the 1920s, but construction started in the 1970s. The first underground stretch, from Bhawanipore (now Netaji Bhawan) to Esplanade, opened in 1984. A truncated section of Green Line, or the East–West Corridor, from Salt Lake Sector V to Howrah Maidan, was opened in 2020. Purple Line, or the Joka–Eden Gardens Corridor (currently truncated in Majerhat), opened in 2022, Orange Line...
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