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Manali: Digging of the 8.8 km-long strategically important Rohtang tunnel started from the opposite end in Lahaul-Spiti.
After being disrupted for six months, work from north portal of tunnel has begun with the same speed as in the south portal.
However the team at south portal has crossed the 1 km RD line and now they were about to touch the 1.1 km milestone. At an altitude of 10,000 feet above sea level, construction work of the tunnel by Border Roads Organization (BRO) is reportedly facing many challenges one after another.
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