Mavala, India’s biggest Tunnel Boring Machine (TBM),named after the infantry warriors in Shivaji’s army, is burrowing metre-by-metre as part of the Mumbai Coastal Road project. Watch how it is going change Mumbai's coastline. | Indian Express
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The world's longest, deepest tunnel opened today underneath the Swiss Alps. http://cnn.it/22xZEj5 | CNN International
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MEIL Group is creating history with India’s biggest-diameter and longest urban tunnels through the Thane–Borivali Twin Tunnel Project. This engineering milestone will cut the 1–2 hour commute to just 15 minutes while protecting the Sanjay Gandhi National Park ecosystem. A 13.34-metre TBM, the largest in any metro city, will build twin 3-lane tunnels. On 29 November 2025, MEIL completed the Thane-side portal excavation and safely lowered the massive cutter head—bringing Mumbai closer to a new era
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