The Kolkata Metro Railway has officially invited bids for the extension of Line 4, marking a significant step in expanding the city?s metro network. This extension project is set to improve connectivity across key urban areas, facilitating easier and more efficient travel for residents. The Line 4 extension will span from the current terminus to new stations, enhancing coverage and reducing travel times within the city. This expansion is part of a broader effort to modernise Kolkata?s public transportation infrastructure and address growing commuter demands. The bidding process invites construction and engineering firms to submit their proposals for the project, with an emphasis on timely and cost-effective delivery. Successful bidders will be responsible for completing the extension, which includes the construction of new tracks, stations, and supporting facilities. The project is expected to ease traffic congestion and provide a reliable transit option for thousands of daily commuters. It aligns with the city?s long-term vision of developing a comprehensive and efficient metro system that supports sustainable urban growth.