Esplanade is an underground interchange metro station on the North-South corridor of the Blue Line and on the East-West corridor of the Green Line of Kolkata Metro in Kolkata, West Bengal, India. This station, which is the biggest in kolkata, is located in the Esplanade neighbourhood of Kolkata, at the northern end of Chowringhee Road/Jawaharlal Nehru Road near New Market and the Oberoi Grand hotel. It opened in 1984 as part of what is now Kolkata Metro Line 1. The station is re-designed to be the largest station of the metro and will function as the interchange station between Line 1, Line 2 and Line 3. The Line-2 complex, built below the Line-1 complex was completed and inaugurated on 6 March 2024. The Line-2 complex is designed with world class amenities and murals that depict the culture, tradition, sports, monuments, important structures, etc in them.

The Line 1, Blue Line, also known as North–South Metro of the Kolkata Metro, is a rapid transit system serving Kolkata in Indian state of West Bengal. It consists of 26 operational stations from Dakshineswar to Kavi Subhash. Nine of the stations are elevated, 2 at-grade and the remaining 15 are underground, with a total distance of 32.13 km (19.96 mi). The line connects Dakshineswar and New Garia and uses 5 ft 6 in broad gauge rolling stock. Dakshineswar was opened on 22 February 2021 is an elevated station located 4.1 km (2.5 mi) north of Noapara. It was the first underground railway to be built in India, with the first operations commencing in October 1984 and the full stretch that was initially planned being operational by February 1995. On 28 December 2010, it became the 17th zone of the Indian Railways. Being the country's first, and a completely indigenous process, the construction of the Kolkata Metro was more of a trial-and-error affair, in contrast to the Delhi Metro, which has seen the involvement of numerous international consultants. As a result, it took nearly 23 years to completely construct around 15 km (9.3 mi) underground railway from Birpara up to Tollygunge Metro Station.