National Highway 17 originates from Sevoke near Coronation Bridge and terminates in Guwahati.

[1] Sevoke is located at 26°53′49″N 88°28′23″E / 26.897°N 88.473°E / 26.897; 88.473' The map alongside shows the eastern portion of the Darjeeling Himalayan hill region and a small portion of the terai region in its eastern and southern fringes, all of it in the Darjeeling district.

Sevoke is located on the way to Gangtok, Sikkim, Kalimpong and Doars on the NH 10 from Siliguri.

[8] The track is due to be constructed through the foothills of the Kanchanjungha mountain range and the Teesta river valley.

[citation needed] New railway stations will be constructed at Melli, Teesta Bazaar, Geil Khola, Riang, and Rangpo.

[citation needed] The Indian Railways signed a contract with the construction company, IRCON, only in May 2010 but the final alignment had not been fixed for the first 22 km through elephant sanctuary forest even in 2013 and the final clearance of environment ministry had not been received.

The Supreme Court of India approved the project in February 2016 with strict guidelines of the National Wildlife Board that cleared the project in June 2015 but ordered restricted speed, wireless animal tracking sensors and allowed digging of tunnels only during daytime.