Siliguri in the context of Darjeeling District

The Siliguri Corridor, often dubbed the "Chicken's Neck", is a stretch of land around the city of Siliguri in West Bengal, India. 20–22 kilometres (12–14 mi) at the narrowest section, this geopolitical and geoeconomical corridor connects the seven states of northeast India to the rest of India. The countries of Nepal and Bangladesh lie on each side of the corridor and the Kingdom of Bhutan lies at the northern end of the corridor. The Kingdom of Sikkim formerly lay on the northern side of the corridor, until its merger with India in 1975.

The city of Siliguri is the major city in the area and the central transfer point connecting Bhutan, Nepal, Bangladesh, Sikkim, Darjeeling, Northeast India and mainland India. According to the Indian Army, the Siliguri Corridor is the Army's strongest defensive line.

Darjeeling District is the northernmost district of the state of West Bengal in eastern India in the foothills of the Himalayas, in the eastern Sivalik Hills.The district is famous for its hill station and Darjeeling tea. Darjeeling is the district headquarters. Kurseong, Siliguri and Mirik, three major towns in the district, are the subdivisional headquarters of the district. Kalimpong was one of the subdivisions but on 14 February 2017, it officially became a separate Kalimpong district.

Geographically, the district can be divided into two broad divisions: the hills and the plains. The entire hilly region of the district comes under the Gorkhaland Territorial Administration, a semi-autonomous administrative body under the state government of West Bengal. This body covers the three hill subdivisions of Darjeeling, Kurseong and Mirik and the district of Kalimpong. The foothills of Darjeeling Himalayas, which comes under the Siliguri subdivision, is known as the Terai. The district is bounded on the north by Sikkim, on the south by Uttar Dinajpur district of West Bengal, southwest by Kishanganj district of Bihar state, on the southeast by Panchagarh district of Bangladesh, on the east by Kalimpong and Jalpaiguri districts, and on the west by easternmost Koshi Province of Nepal. Darjeeling district has a length from north to south of 18 miles (29 km) and a breadth from east to west of 16 miles (26 km). As of 2011, it was the second least populous district of West Bengal (out of 19), after Dakshin Dinajpur.

Charu Majumdar (15 May 1918 – 28 July 1972) was an Indian communist leader, and founder and General Secretary of the Communist Party of India (Marxist-Leninist). Born into a progressive landlord family in Siliguri in 1918, he became a Communist during the Indian independence movement, and later formed Naxalism. During this period, he authored the historic accounts of the 1967 Naxalbari uprising. His writings, particularly the Historic Eight Documents, have become part of the ideology of a number of Communism-aligned political parties in India.

Rangpo is a Municipal town in India shared by Pakyong district of the state Sikkim and Kalimpong district of the state West Bengal. The town is situated along the Teesta River and Rangpo River. It is the first town of Sikkim lying on National Highway 10 that links Siliguri to Gangtok. It is about 300 m above sea level with a sub-tropical climate. It is the 'Gateway to Sikkim' and all vehicles entering Sikkim have to stop at the Rangpo Police check-post. Foreign tourists are required to present documents to enter Sikkim state and must show them at the police checkpoint. The Rangpo River separates the Rangpo Forest Village lying on the West Bengal side from the Rangpo Municipal Town lying on the Sikkim side.

Jalpaiguri (Bengali pronunciation: [d͡ʒɔlpai̯guɽi]), is a city in the Indian state of West Bengal. It is the headquarters of the Jalpaiguri district as well as of the Jalpaiguri division of West Bengal, covering the jurisdiction of the five districts of North Bengal. The city is located on the banks of the Teesta River and Karala River, on the foothills of the Himalayas. The city is home to the circuit bench of the Calcutta High Court, the other seat being at Port Blair in the Andaman and Nicobar Islands. Jalpaiguri features the Jalpaiguri Government Engineering College, the second campus of the University of North Bengal and the Biswa Bangla Krirangan/ Jalpaiguri Sports Village. It lies 35 km (22 mi) east of its twin city, Siliguri. The merging of the two cities makes it the largest metropolis of the region.