Rohtang Tunnel: All you need to know about the world’s longest highway tunnel.
https://indianexpress.com/article/explained/explained-all-you-need-to-know-about-the-rohtang-tunnel-6135920/
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A 3,000-member team of contractual workers and 650 regular employees of the Border Roads Organisation (BRO) have been working in shifts through 24 hours on the Rohtang Tunnel project.
cover tunnel photo by: Matt Brown from London, England / CC BY
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