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<iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/XycHgoTBl5Y" title="YouTube video player" width="560"></iframe></p>
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At an altitude above 10,000 feet, Atal Tunnel has entered the World Book of Records as the &#39;world&#39;s longest tunnel. Atal Tunnel has been constructed by Border Roads Organisation. Watch to know more&nbsp;</p>
