Four decades of Calcutta Metro : The unstoppable journey
Finally, on 24 October 1984, Calcutta got its memorable Diwali gift, as the 75th city in the world and as the first city of India to have a commercially active underground tube line of 3.4 km covering only five stations: Esplanade, Park Street, Maidan, Rabindra Sadan and Bhawanipur.