Siliguri Corridor

Coordinates: 26°35′N 88°15′E / 26.583°N 88.250°E / 26.583; 88.250
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The Siliguri Corridor is the strip of Indian territory within the red highlighted circle.

The Siliguri Corridor, also known as the Chicken's Neck, is a stretch of land around the city of Siliguri in West Bengal, India.[1][2] 20–22 kilometres (12–14 mi) at the narrowest section, this geo-political and geo-economical corridor connects the eight states of northeast India to the rest of the Indian Republic.[1] 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 merging with India in 1975.

The city of Siliguri, in the state of West Bengal, is the major city in this area and the central transfer point in eastern South Asia that connects Bhutan, Nepal, Bangladesh, Sikkim, Darjeeling, and Northeast India to one another.


The partition of India led to the formation of the Siliguri Corridor through the creation of East Pakistan (now Bangladesh) after the partition of Bengal (into East Bengal and West Bengal) in 1947–1948.[3]

The Kingdom of Sikkim formerly lay on the northern side of the corridor, until its union with the Indian Republic in 1975 via a publicly held referendum.[4][5] This gave India a buffer to the north of the Siliguri Corridor and consolidated India's control over the western side of the Chumbi Valley.

Location and dimensions[edit]

Dimensions of the corridor. Distances in kilometers.

The dimensions of the corridor are a matter of interpretation.[6] Descriptions give it an area of 170 by 60 km (106 by 37 mi) with the narrowest section being 20–22 km (12–14 mi).[1][2] Kamal Jit Singh places the length at 200 km (120 mi) with a width of 17 to 60 km (11 to 37 mi), giving it an area of approximately 12,200 km2 (4,700 sq mi).[6]

Another description places its dimensions as approximately 200 km (120 mi) in length and 20 to 60 km (12 to 37 mi) wide, also giving it an area of approximately 12,200 km2 (4,700 sq mi).[7]

The corridor is located between Bangladesh to the south-west, Nepal on the northwest, and proximate to Bhutan in the north.[8] Between Sikkim and Bhutan lies the Chumbi Valley, a dagger-like slice of Tibetan territory.[9] The southern end of the Dolam plateau or Doklam triboundary area slopes into the corridor.[10] At the narrowest stretch, the corridor is generally formed by the Mechi River in the east; Nepal's Bhadrapur lies on the banks of the river.[11] Further north the Mechi Bridge connects Mechinagar.[12][13]

Current situation[edit]

Connectivity and logistics[edit]

AH2 of the Asian Highway goes through the Siliguri Corridor.

India has embarked on a slew of projects, such as construction of India-China Border Roads and Advance Landing Ground (ALGs), Northeastern India connectivity and Look-East transnational connectivity projects including BIMSTEC and BBIN to create multiple alternatives to Silliguri corridor, including through Bangladesh and the sea.

All land transportation between the rest of India and its far northeastern states uses this corridor. The route has a major broad gauge railway line. Electrification of this double-track corridor is in progress with assistance from Central Organization for Railway Electrification (CORE). Additionally, the old metre gauge line (recently converted to a 1.676 metres (5 ft 6.0 in) broad-gauge line) connects Siliguri Junction with Islampur in North Dinajpur district of West Bengal, via Bagdogra (the only airport of national interest in the corridor) and the bordering towns of Adhikari, Galgalia, Thakurganj, Naxalbari and Taiabpur with Nepal. National Highway 10 connects Siliguri to Guwahati in Assam.[14]

There is no free-trade agreement between Bangladesh and India. The Tetulia Corridor, an alternative to the Siliguri Corridor, is proposed under Article VIII of the India–Bangladesh Trade Agreement 1980, which states that "The two governments agree to make mutually beneficial arrangements for the use of their waterways, railways and roadways for commerce between the two countries and for passage of goods between two places in one country through the territory of the other".[citation needed] However, the proposal is still in the initial stages of negotiation.


India has a number of forces stationed on the borders, the Army and Indo-Tibetan Border Police man the border with China; Sashastra Seema Bal are deployed along the border with Nepal and Bhutan and Border Security Force for Bangladesh.[6] The strip is also patrolled by the Indian Army, the Assam Rifles, and state police forces including the West Bengal Police.[6] The security threat posed by the corridor decreased following the creation of Bangladesh in 1971.[15] Internal threats to the corridor are numerous.[15] Militant groups known to have used the corridor include United Liberation Front of Asom (ULFA) and National Socialist Council of Nagaland (NSCN).[7]

The threat of a Chinese advance is still considered by Indian planners.[15] A Chinese military advance of less than 130 km (81 mi) would cut off Bhutan, part of West Bengal and all of North-East India, an area containing almost 50 million people. This situation arose during the war between India and China in 1962.[9] The security threat to this corridor was heightened during the 2017 Doklam incident.[16] The probability of China cutting off seven states in northeast India has been questioned.[17]

In popular culture[edit]

Humphrey Hawksley, in his 2000 novel Dragon Fire, briefly authors a situation where China cuts off India's land route to its northeastern territories.[7] Assassin's Mace (2011) by Brigadier Bob Butalia also involves such a situation involving Doklam and Jaldhaka River.[6]


  1. ^ a b c Singh, Mayank (7 November 2021). "Army steps up efforts to safeguard Siliguri Corridor". The New Indian Express. Retrieved 16 January 2022.
  2. ^ a b Singh, Mohinder Pal (9 October 2019). "What if China wrings India's 'Chicken's Neck' – the Siliguri corridor? Here are some countermeasures". The Times of India. Retrieved 16 January 2022 – via USI India.
  3. ^ Atig Ghosh, The Importance of Being Siliguri (2018), p. 136.
  4. ^ "Sikkim Votes On Indian Merger". Daytona Beach Morning Journal. 15 April 1975. Retrieved 28 January 2018.
  5. ^ "Sikkim Voters OK Merger With India". Sarasota Herald-Tribune. 16 April 1975. Retrieved 28 January 2018.
  6. ^ a b c d e Singh, Lt Gen (Retd) KJ (9 July 2017). "India ready, theoretically: 'Threats' to Siliguri Corridor war-gamed". Tribune India. Retrieved 21 January 2022.
  7. ^ a b c Bhattacharya, Pinaki (2001). "The Shiliguri Corridor: Question Mark on Security". South Asia Terrorism Portal. Retrieved 21 January 2022.
  8. ^ Marcus Franda, "Bangladesh, The First Decades", South Asian Publishers Pvt. Ltd, New Delhi, 1982, p-126
  9. ^ a b Partha S. Ghosh, "Cooperation and Conflict in South Asia", UPL, Dhaka, 1989, p-43
  10. ^ Myers, Steven Lee; Barry, Ellen; Fisher, Max (26 July 2017). "How India and China Have Come to the Brink Over a Remote Mountain Pass". The New York Times. ISSN 0362-4331. Retrieved 22 January 2022.
  11. ^ Dixit, Kanak Mani (1 August 2002). "Chicken's Neck". Himal Southasian. Retrieved 22 January 2022.
  12. ^ "Approval of MoU between India & Nepal for laying down implementation arrangement for construction of new Bridge over Mechi River at Indo-Nepal border". Business Standard India. 23 August 2017. Retrieved 22 January 2022.
  13. ^ Khanal, Radha (26 November 2020). "Asian Highway now connected with Nepal". The Annapurna Express. Retrieved 22 January 2022.
  14. ^ Gokhale, Nitin A. (13 July 1998). "Chicken's Neck, All choked up". Outlook. Archived from the original on 28 April 2020. Retrieved 27 February 2011.
  15. ^ a b c Joshi, Manoj (10 July 2017). "Chink In The Checker's Board". ORF/ Outlook. Archived from the original on 3 October 2018.
  16. ^ Singh, D. K. (11 August 2018). "This is the first official account of the India-China face-off in Doklam". ThePrint. Retrieved 21 January 2022.
  17. ^ Asthana, Alok (1 August 2017). "Does It Make Military Sense for India to Mount the Barricades at Doklam?". The Wire. Retrieved 22 January 2022.
  • Ghosh, Atig (2018). "The Importance of Being Siliguri. Border-Effect and the 'Untimely' City in North Bengal". In Neilson, Brett; Rossiter, Ned; Samaddar, Ranabir (eds.). Logistical Asia: The Labour of Making a World Region. Palgrave Macmillan, Springer. ISBN 9789811083334. LCCN 2018935185.

Further reading[edit]

26°35′N 88°15′E / 26.583°N 88.250°E / 26.583; 88.250