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On 10 July 2026, Tunnel Boring Machine “Durga” completed a breakthrough on which metro line, advancing which corridor?

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1. On 10 July 2026, Tunnel Boring Machine “Durga” completed a breakthrough on which metro line, advancing which corridor?

Kolkata Metro’s Purple Line, the Joka-Esplanade Corridor

Delhi Metro’s Pink Line, the Majlis Park-Shiv Vihar Corridor

Mumbai Metro’s Aqua Line, the Colaba-Bandra Corridor

Chennai Metro’s Corridor 3, the Madhavaram-SIPCOT Corridor

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