The Darjeeling Himalayan Railway, also known as the DHR or the Toy Train, is a 610 mm gauge railway that runs between New Jalpaiguri and Darjeeling in the Indian state of West Bengal. Built between 1879 and 1881, it is about 88 km (55 mi) long. It climbs from about 100 m (330 ft) above sea level at New Jalpaiguri to about 2,200 m (7,200 ft) at Darjeeling, using six zig zags and three loops to gain altitude. Ghum station is situated at an altitude of 2,258 metres (7,407 ft). Six diesel locomotives handle most of the scheduled service, with daily tourist trains from Darjeeling to Ghum – India's highest railway station – and the steam-hauled Red Panda service from Darjeeling to Kurseong. Steam-enthusiast specials are hauled by vintage British-built B-Class steam locomotives. The railway's headquarters are at Kurseong.

Siliguri is a major tier-II city in West Bengal. It forms "Twin Cities" with the neighbouring district capital of Jalpaiguri. The city spans areas of the Darjeeling and Jalpaiguri districts in the Indian state of West Bengal. Known as the "Gateway of Northeast India", Siliguri is popular for three Ts: tea, timber and tourism. It is located on the banks of the Mahananda River and the Teesta River at the foothills of the Himalayas. Siliguri is the third largest urban agglomeration in West Bengal, after Kolkata and Asansol.