
Fazlous Satter
The Siliguri Corridor is a narrow stretch of land located in West Bengal connecting the Indian mainland to the northeastern states Assam, Meghalaya, Manipur, Nagaland, Tripura, Mizoram, Arunachal Pradesh, and the Sikkim (which was an independent state for a long time and later became a vassal state in 1950 and eventually lost it sovereignty and incorporated as an Indian state in 1975). The 60-kilometer long and 22-kilometer wide Siliguri Corridor is often called the "Chicken's Neck". Due to its limited passage and vulnerability to foreign attack, militarily this corridor is also referred to as the choking point.
Siliguri is situated in the foothills of the Himalayas Range which is the 2nd largest city of Indian state West Bengal. The river Mahanadi divides Siliguri City into two halves. The city is bounded by jungles with noticeable wildlife and many other natural features like rivers and mountains.
It lies in the Chumbi Valley of the Chinese-Tibetan Autonomous Region that is contiguous to the Indian States of Sikkim and Arunachal Pradesh specifically. This narrow stretch of land amidst three countries Nepal, Bhutan, and Bangladesh serves as the lifeline for the seven sister states of northeast India.
Being unique and too narrow it is only 10 km away from Nepal and 40 km from Bhutan and Bangladesh just adjacent to it. The corridor is also close to China through Chumbi Valley. Siliguri is designated as an entrance not only for Nepal, Bhutan, and Bangladesh but also is a logistics base for the region and thus is an attraction for all.
The climate and geological features
Being part of the high-altitude Himalaya Range, the climate remains cold most of the year ranging from 7 to -9 degrees Celsius from December to January. In the summer season from May to June temperature seldom crosses 35 degrees Celsius. The climate is much suited for tea plantations and the corridor is bounded by tea gardens. The Siliguri city is in the vicinity of many fault lines which cause most of the earthquakes. The highest level of the recorded earthquake was measured in 1988 up to 9.7 on the Richter scale. It is interesting to note that the earthquake which occurred in 2011 lasted for a noticeable period of four minutes and seventeen seconds.
The Treaty of Siliguri between British India and Nepal
According to Hasan Yaser Malik of Chartered Institute of Logistics and Transport (UK) Siliguri, which means a pile of pebbles, has been a transit spot between Darjeeling and Karseong since the conclusion of the "Treaty of Siliguri" between British India and Nepal in 1816. South of Siliguri, Phansideoa was a port that had an agreement with Maldah, thereby with other areas of Bengal and Bihar. The Sikkimese and Bhutanese have been using the Mahanadi to transport their merchandise to Phansideoa Port since the eighteenth century.
Siliguri progressively established into a small town once the British occupied Darjeeling in 1835. The significance of the area was enhanced further once the British East India Company established a railway line to Northeast India that continuously increased the number of immigrants from Nepal, Bhutan, and the Seven Sister States while the number of the original residents of Siliguri City; the Rajbangshis, was decreasing daily. In 1947, the partition of India and the emergence of East Pakistan flagged the pathway of Siliguri becoming a significant transit spot and the strategically imperative area which led to the rise of the immigrant population mainly from erstwhile East Bengal, Nepal, Bhutan, Seven Sister States, Bihar and Jharkhand in search of livelihood.
The demographic features of Siliguri
As per the records of 2011, the population of Siliguri city comprised 705,579 individuals with 51 percent being male population. The majority of Siliguri's population is Bengali; other chief minorities include Gurkhas, Rajbangshis, Meitei, Bodo Biharis, and Marwaris speaking mainly Bengali, Hindi, English, and Nepali languages. However, the locals of Siliguri Rajbangshis people speak Tibetan languages.
A hub for regional trade, commerce, and tourism
The Siliguri region is important for trade, commerce, and tourism for West Bengal, Sikkim, Assam, Nepal, Bhutan, and Bangladesh. All land trade between the North East and the rest of India happens through this corridor.
Siliguri is also provided educational facilities to students from West Bengal, Sikkim, Bihar, and Assam and the bordering countries of Bangladesh, Nepal, and Bhutan. It is especially applicable for the low-cost English medium school education since the colonial era.
A strategic hub of Indian rail and road network
The Siliguri corridor is the hub of a rail and road network connecting West Bengal and the rest of India to the North East, including Assam, Nagaland, and Sikkim. It is also the hub of the railway network that connects to the strategic military formations along the Line of Actual Control (LAC).
From the New Jalpaiguri Junction Railway Station (NJP), different rail links emerge to connect the three important military formations located right opposite China.
From the NJP station, a rail link moves towards Guwahati in Assam. It is from here that a road network moves towards the strategically important Tawang town in Arunachal Pradesh, according to regional experts, the Line of Actual Control (LAC) separating India and China is merely 25 km away from Tawang. This road and rail network provides essential supplies to the Indian Army’s 4 Corps (having a strength of about 60,000 troops) responsible for the defense of the Tawang district.
From the NJP station, a rail link also heads towards Dimapur in Nagaland and Dibrugarh in Upper Assam. From here roads move towards the rest of Nagaland and western Arunachal respectively. This network serves the Army’s 3 Corps, also consisting of the same number of men as 4 Corps.
The railway network also caters to the requirements of 33 Corps, which has its military formations based in Sikkim.
The Indian deployment at Siliguri Corridor
The corridor has major airbases: Bagdogra and Hashimara and an upcoming Army aviation base at Shaugaon. A large number of Indian Army and Central Armed Police Force (CAPF) installations are located in this narrow stretch. In keeping with the ‘one border, one force’ policy, the responsibility of borders is divided between the Indian Army and the Indo-Tibetan Border Police (ITBP) for China; Sashastra Seema Bal (SSB) for Nepal and Bhutan, and Bangladesh with Border Security Force (BSF.) The multiplicity of forces and agencies requires an effective and tailor-made coordination mechanism. Most of the border except for Bangladesh is un-fenced and porous with treacherous riverine stretches. Tea, timber, and tourism are the main drivers of economic activity, controlled by Siliguri.
Strategic Importance of the Siliguri Corridor
The Siliguri Corridor is a strategically important and highly sensitive territory. Wedged between Bangladesh to the south and the west and China to the north, the Siliguri Corridor also links India to neighboring Nepal, Bangladesh, and Bhutan.
The whole North-Eastern states of India is geographically isolated from the rest of India and is connected to the mainland through this Siliguri Corridor. The corridor extends from the Darjeeling, Jalpaiguri, and Terai areas of West Bengal towards the North East.
The corridor itself is a geographical deformity, often referred to as the “cartographic relic of the British decolonization process”. The Corridor now has separated a population of about 50 million from the mainland of India. Wedged between Bangladesh to the south and west and hostile China to the north, the region has no access to the sea closer than Kolkata, on the other side of the corridor. Between Sikkim and Bhutan lies the Chumbi Valley, a dagger-like slice of Tibetan territory.
Strategically, the Siliguri corridor is also considered as the Achilles heel in the defense of almost 2000 kilometers of Indian borders with China and Myanmar. According to the military strategists, this 2,000 sq km stretch of land would be the prime and early target of any event of any war.
Siliguri Corridor with low hills, jungles and broken ground dotted with numerous rivers provides multiple formidable defense lines.
Apart from that several armed insurgent groups including the United Liberation Front of Assam (ULFA) and the National Socialist Council of Nagaland (NSCN) have been using the corridor for their movement for a long time. The emergence of the Rajbangshis insurgent outfit, the Kamtapur Liberation Organization (KLO), is also adding to the worries of Indian security forces here. The presence of KLO along with Gurkha nationalism and their demand for a Gurkhaland also have made this region a target for hybrid warfare.
The Siliguri Corridor and China-India border conflict
Siliguri Corridor lies in the Chumbi Valley of the Chinese Tibetan Autonomous Region that is contiguous to the Indian States of Sikkim and Arunachal Pradesh specifically.
By an advance of just 130 kilometers, the Chinese military could cut off Bhutan, West Bengal, and the northeastern states of India. About 50 million people in northeast India would be separated from the mainland of India.
Indian defense annalist thinks that threat to the Siliguri corridor is perennial as China has continued its overt road and airstrip construction activities on its side of the border. This could allow China to rapidly mobilize and deploy troops thereby threatening the Siliguri corridor. Furthermore, the deployment of artillery, missiles, or anti-aircraft weaponry could easily jeopardize India's efforts to resupply the region in the time of war, especially considering that there is only a single railway line through the region to NE states.
From the Indian perspective, China, which already claimed the whole of 83,743 square kilometers (32,333 sq miles) territory of the Arunachal Pradesh has been a perennial threat to the Siliguri Corridor. The predominantly Buddhist Indian state of Arunachal Pradesh shares a border with China, which continues to claim the state as a part of its Tibet Autonomous Region. It is an ethnically diverse state, with predominantly Monpa people in the west, Tani people in the center, Tai people in the east, and Naga people in the south of the state. It should be noted that during the 1962 Sino-Indian War, most of Arunachal Pradesh was temporarily captured by the Chinese People's Liberation Army (PLA).
Some defense annalist even thinks that the Chinese have an opportunity to create seven different Bangladesh in north-east India. Among the disadvantages that India faces in its defensive posture vis-a-vis China is that many of the infrastructure projects of roads and bridges initiated have been delayed by the difficulties of the terrain and the inadequacy of heavy-lift helicopters to deliver civil engineering material to the building sites. By the very nature of its geography, the Siliguri Corridor is indefensible with static obstacles and firepower.
In addition to these, the road being constructed by China in the Doklam plateau will ensure that in a conflict it will block the Siliguri Corridor and cut off the North East. This would also lead to the cutting off of three primary military formations and their units, drastically reducing the supply of equipment and reinforcements to them.
It should be noted that the Chinese strategic assets near the Doklam plateau have increased over the years with the upgrading of the road from Lhasa to Yadong (near the plateau), which allows the 500 km journey to be made in just seven hours. China is also working on extending the Beijing-Lhasa high-speed railway line to Yadong. This enhances China’s military logistics in the region opposite the Siliguri Corridor. If the road in Doklam is connected to Yadong, it would add to the enhancement in China’s capabilities in choking the corridor.
However, some Indian experts point out that China's road and rail network in the Chumbi Valley will be vulnerable to artillery shelling and air attacks from either Sikkim or Bhutan. Therefore, if China blocks the Siliguri Corridor by sending its army on the road it plans to construct in Doklam, it may not be able to sustain itself for too long. Also, the force levels that China will have to commit to operations in this sector will be at the cost of operations in other sectors.
It should be noted that the China-India border has three sections: the western sector between Ladakh and the Chinese-held Aksai Chin, the central sector, and the eastern sector dividing Sikkim and Arunachal Pradesh states from Tibet.
The Siliguri Corridor and Bhutan factor
According to an article of Dr. Monika Kannan, published in the Imperial Journal of Interdisciplinary Research (IJIR), a Chinese military advance of fewer than 80 miles (130 km) 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.
Since the 1962 war with China, Indian strategists have envisioned a future scenario where the Chinese may simply bypass and drop Special Forces to choke the vulnerable Siliguri Corridor and cut off the Northeast. Chinese diplomacy with Bhutan gives reason to take this possibility seriously; since 1996, China began a concerted diplomatic effort to yield a border claim with Bhutan in exchange for the Doklam Plateau. The territorial swap with Bhutan would place in Chinese hands the key to India’s choke point in the Siliguri.
According to Dr. Monika Kannan, it seems that India is apprehensive due to emerging ties between Bhutan and China wherein China and Bhutan both are resolving their territorial issues mutually. Apart from that, any land linkage between China and Myanmar can serve a prudent economic and diplomatic opportunity for Bhutan and the deprived Indian citizens of the Seven Sister States due to which Indians may lose a trusted and dependent friend like Bhutan.
The Siliguri Corridor and Nepal factor
The distance between Nepal and the Siliguri Corridor is just 10 kilometers. Nepal uses the Siliguri Corridor for its trade, commerce, and tourism with Bangladesh, Bhutan, and India. Previously Nepal was known as the only Hindu Kingdom of the world and that maintained deep friendly relations with neighbor India. Therefore, Nepali and Indian citizens can still visit each other's country without having any visa.
But recently the situation has changed a lot due to its dispute over the land boundary. Nepal's foreign policy has now shifted towards the Chinese sphere. That turned former friendly relations of these two countries into adversary in terms of geopolitical interest.
By considering this reality, the influence of ethnically Nepali Gurkha in the Siliguri Corridor and their demand for Gurkhaland became a matter of concern for the Indian security establishment.
It should be mentioned that Gurkhas are known as a fearless soldier. Historically, they served in the Nepali, Indian and British Army. Once former Indian Army Chief of Staff Field Marshal Sam Manekshaw said that: "If a man says he is not afraid of dying, he is either lying or he is a Gurkha."
The Siliguri Corridor and Bangladesh factor
The Siliguri Corridor has measured approximately 12,203 sq km. The narrowest 4 km strip towards the western edge, the Tetulia corridor is wedged between Nepal and Bangladesh. The eastern part of the Corridor is wider and borders Bhutan and Bangladesh. The Chumbi valley tapering into Dolam/Dokalam plateau is barely 100 km away.
According to the strategic defense analysts, in the event of a large scale outbreak of war between India and China, the active or passive support of Bangladesh would have an immense impact, especially by considering the proximity of the Indian Siliguri Corridor and any possible Chinese attack from the northeastern frontier or adjacent Bhutan border. Essentially the fall or collapse of the Siliguri Corridor (Chicken's Neck) would result in the complete disruption of communication between India and the rest of its Seven Sister States, other than by the most expensive option – AIR.
By considering this possible scenario on October 10th, 2019 Indian news media Times of India published an article of Mohinder Pal Singh titled “ What if China wrings India's 'Chicken's Neck' – the Siliguri corridor? Here are some countermeasures".In that article author mentioned three possible options for India to counter the Chines effort to cut off the Siliguri Corridor from the rest of India. The following are those options:
The first option for India is to enter into a treaty with Bangladesh permitting not only transit of military equipment during times of conflict but also civilian traffic and trade activities. This would add a layer of strategic depth in the region and alleviate (in some measure) concerns of the possible severance of the north-east with the mainland.
The second option is to strengthen connectivity to the tri-junction area at Doka La so that Indian response as well as surveillance capability is augmented.
The third option is to make alternate transport arrangements that are safe and secure within India itself. The development of a multi-modal transport corridor through Siliguri itself can be undertaken by India. As part of this initiative, India can even build underground road tunnels which are less likely to be susceptible to air and artillery attack in a time of a military conflict.
If we consider the above-mentioned article, it is quite clear that in any event of war between India and China or in case of any Chinese effort of cut off this choking point India may pursue Bangladesh to turn its existing civil transit/ connectivity facilities into a military one. If Bangladesh denies India military transit/connectivity access through its territory against its investment and strategic partner China that may bring a catastrophic situation for Indian defense. On the other hand, if Bangladesh succumbed to the Indian pressure; then part of Bangladesh would be a risk of turning into a battlefield of the China-India war.
However, politically the current regime of Bangladesh enjoys an exceptional relationship with India in a time when India is suffering from silent diplomatic isolation from most of its South-Asian neighbors. Therefore, by taking advantage of political rapport, India was enjoying many geopolitical dividends.
But the situation changed with the Chinese tens of $ billion investment promise along with existing investment in the various mega project in Bangladesh which made a sharp contrast with the Indian implementation process of NRC branding its Bangla speaking Muslim population as a citizen of Bangladesh with the immense threat of expulsion as a part of its anti-Muslim xenophobia. It also acted against Bangladesh in the Rohingya crisis to counterbalance China in Burma.
Apart from the submarine purchases from China, India is also concerned about the recent Chinese proposed loan worth $938.27 million to implement the proposed ‘Teesta River Comprehensive Management and Restoration Project’ that has created resentment among Indian political as well as defense establishment.
India considers this Chinese loan proposal as an effort of geopolitical maneuvering near the Siliguri Corridor. However, for a long time, India deprived downstream country Bangladesh of its just share of water from this common river despite its repeated promise.
With the shift in the regional scenario, Bangladesh is now in a balancing rope between its political alliance with big neighbor India and strategic and investment partner China.
But a recent move from Pakistan to normalize relations with Bangladesh is also considered by many Indian analysts as a reflection of the strategic shift toward China.
Therefore, any break out of the war between two regional power China and India would be a great danger for Bangladesh both in terms of overall trade, investment, and supply of consumer products as well as national defense and security.
September 22, 2020
Fazlous Satter is a human rights and human security activist & researcher from Bangladesh. He authored “UNDERSTANDING THE WORLD’S LONGEST CIVIL WAR: COLONIAL STATE FORMATIONS, GEOPOLITICS, CONFLICT OVER NATURAL RESOURCES AND THE GENOCIDE"

