Delhi Metro Achieves New Engineering Feat, Builds Tunnel Beneath Operational Corridor Without Halting Trains

Delhi Metro Achieves New Engineering Feat, Builds Tunnel Beneath Operational Corridor Without Halting Trains
Delhi Metro Tunnel Feet: The tunnelling was carried out between Pulbangash and Sadar Bazar stations using a Tunnel Boring Machine (TBM), working directly below an elevated viaduct that carries thousands of commuters daily.