New Delhi, Aug 17 (TIWN) Delhi-Dehradun Expressway achieved a major milestone as the last 20km stretch passing through the eco-sensitive zone of Raja Ji National Park has witnessed the start of construction that includes the 340m Daat Kali tunnel.

Delhi-Dehradun Expressway achieved a major milestone as the last 20km stretch passing through the eco-sensitive zone of Raja Ji National Park has witnessed the start of construction that includes the 340m Daat Kali tunnel.  "Breakthrough achieved on Delhi-Dehradun Expressway project. The last 20km stretch passes through eco-sensitive zone of Raja Ji National Park where Asia's longest elevated wildlife corridor (12km) is being constructed that includes 340m Daat Kali tunnel," said Union Road, Transport and Highway Minister Nitin Gadkari while sharing the update about the construction of the expressway.