The move is aimed at facilitating smooth movement of commuters for the Durga Puja Carnival on that day.
At the carnival on Red Road, people are expected to attend in droves.
Idols of the top community Durga Pujas in Kolkata are displayed in a colourful parade at the annual carnival.
It may be mentioned here that the UNESCO had in 2021 accorded the Intangible heritage status to the Durga Puja in the city.
The West Bengal Transport Corporation (WBTC) said it will operate 23 additional buses till midnight on October 27.
The Regional Transport Authority (RTA), Kolkata, has also written to all private bus, minibus, taxi and auto-rickshaw unions to ensure the availability of sufficient public transport for smooth transportation of people on that day, an official said.
Based on report by ANI