Final breakthrough of Kolkata Metro's East-West Metro Tunnelling: TBM Urvi arrives at Bowbazar : TunnelContact.com

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Tunnel Breakthrough Moments

Final breakthrough of Kolkata Metro's East-West Metro Tunnelling: TBM Urvi arrives at Bowbazar

By Ansh Chaturvedi 1416 days ago

Tunnel Breakthrough Moments

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cover tunnel photo by: Matt Brown from London, England / CC BY

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