The Border Roads Organisation (BRO) will start the construction of a tunnel connecting Himachal Pradesh with Zanskar Valley in Ladakh by July this year under its 'Project Yojak' and this tunnel would be completed by 2025. It will change the economy of Zanskar Valley as, at present, one has to travel 101 km from Manali to Darcha on Leh Road and thereafter, take a turn towards Shinku La Pass to enter Zanskar Valley.