Debasish Bhattacharya is a champion of the “save tram” movement in Calcutta and the tram crusaders, have organized campaigns along the tram tracks between the Maidan and Esplanade; trying to highlight the importance of the public transport system in the city. They are trying to drum up support for trams in Calcutta, which is fast gaining international notoriety for its polluted air and its potential climate change impact. Since 2000, tramways have come back in more than 100 cities across the world mainly to combat environmental pollution.