Howrah metro station

Howrah metro station is a metro station of Kolkata Metro Line 2 in Howrah, India. Built underneath Howrah railway station's new and old complex, the metro station allows interchanging with other zones of Indian Railways as part of the Howrah station transport hub. 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.

History
The master plan had already identified the East-West corridor back in 1971. It was planned to connect Howrah Railway Station with the Salt Lake region. As per the feasibility investigation for the corridor conducted by Pacific Consultant International Group in January 2004; their plan report proposed the route and tubular structures to be beneath the Hooghly River.

The Kolkata Metro Rail Corporation Limited (KMRC) was formed, to execute the operations of this line.

After extensive work, the Esplanade-Howrah Maidan section of Kolkata Metro Line 2 was due to be inaugurated on 6 March 2024 by Prime Minister Narendra Modi, along with the truncated sections of Taratala-Majerhat under Line 3 and Kavi Subhash-Hemanta Mukhopadhyay under Line 6. This station was a gift to the western part of West Bengal as local commuters arriving at Howrah railway station from Howrah, Midnapore and Hooghly districts can use these services to reach their offices. This station solely serves as a tourist attraction due to the underwater tunnel segment under Hooghly River, indicative of dense blue LED lights encompassing the segment.

Connections
Passengers can travel through the Kolkata Metro via interchanges on the rest of Line 2. The station is directly connected to both Howrah railway station complexes (being in middle of those complexes), allowing passengers to access both suburban, regional and long-distance services offered by Eastern Railway and South Eastern Railway via a subway leading to the complexes.