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World's longest highway tunnel connecting Manali with Leh completed in 10
Updated : 5 years, 8 months ago IST
Manali (Himachal Pradesh) [India], September 16 (ANI): The construction of the Atal Tunnel connecting Manali with Leh, which is the world's longest highway tunnel above 10,000 feet, has been completed in a span of 10 years whereas the original estimated time was less than six years.
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