Sivok–Rangpo line
Sivok-Rangpo Railway Line, a 44.96 km long 1,676 mm (5 ft 6 in) broad gauge line connecting the Indian states of West Bengal (Sivok railway station on New Jalpaiguri–Alipurduar–Samuktala Road line near Siliguri in Darjeeling district) and Sikkim (Rangpo Railway Station in Pakyong District), is currently under construction. The railway line is strategically important for national security and socio-economic development, as the line will help troops and armaments move faster towards the Indo-Tibet border.