Lipulekh, Kalapani & Limpiyadhura: Nepal-India Dispute Explained

The Limpiyadhura-Kalapani-Lipulekh area sits at the extreme north-western corner of Nepal, in what Nepal counts as Byas Rural Municipality of Darchula district, Sudurpashchim (Far-Western) Province. India administers the same ground as part of Pithoragarh district in the Kumaon division of Uttarakhand state. The land in dispute is roughly 372 square kilometres of rugged, high-altitude Himalayan terrain lying between about 3,600 and 5,200 metres above sea level, most of it uninhabited for much of the year.

This is not empty scenery. The territory forms the apex of a strategic tri-junction where the borders of Nepal, India and China meet, and it commands old Himalayan trade and pilgrimage routes into Tibet. Lipulekh Pass in particular is one of the shortest routes toward Kailash-Manasarovar, a sacred site for Hindus and Buddhists, which gives the pass both religious and security value to India and China.

The reason the area appears in the news again and again is that it lies at the intersection of history, water and geopolitics. A single unanswered question in a two-hundred-year-old treaty, the source of one river, determines whether hundreds of square kilometres are Nepali or Indian. That ambiguity has never been jointly resolved, so each fresh road, map or trade deal reopens the same wound.

The dispute traces back to the Treaty of Sugauli, signed after the Anglo-Nepalese War of 1814-16 between the Kingdom of Nepal and the British East India Company. The treaty was concluded in December 1815 and ratified on 4 March 1816. Under it, Nepal ceded roughly a third of its territory, and its borders were fixed at the Mechi River in the east and the Kali (also written Kalee, and known in Nepal as the Mahakali) River in the west.

Article 5 of the treaty is the heart of the matter. It records that the King of Nepal renounces all claim to territories lying to the west of the Kali River. In other words, the Kali is defined as the international boundary, and everything east of it is Nepali. On this point both sides agree.

The problem is what the treaty does not say. It names the Kali River as the border but never identifies the river's source. A river with several tributary streams can be traced to more than one origin, and the westernmost, longest or highest source will place the boundary line further west than a shorter eastern one. Because nineteenth-century surveyors and later map-makers picked different streams as the true head of the Kali, the same treaty word, Kali, produced two very different borders on the ground.

Nepal's position is that the Kali River rises at Limpiyadhura, a high ridge to the north-west, and that the stream flowing from there (associated with the Kuthi Yankti) is the main Kali. If Limpiyadhura is the source, then Limpiyadhura, Kalapani and Lipulekh all lie east of the boundary river and are Nepali, giving the roughly 372 sq km claim. Nepal supports this with older maps, including several British-era survey maps, and with the argument that the longest and highest tributary should define the river's head.

India's position is that the boundary river originates much further east and lower down, from springs in the vicinity of Kalapani, where the Lipu Gad stream and the Kalapani spring waters meet. On this reading the border runs east of Limpiyadhura, so Kalapani and the Lipulekh approach fall on the Indian side. Within this Indian-administered zone, the core Kalapani pocket is often described as a smaller area of around 35 sq km, while the full Nepali claim of about 372 sq km reaches all the way back to the Limpiyadhura ridge.

The competing claims are therefore a hydrology argument as much as a legal one. Which trickle of glacial meltwater counts as the beginning of the Kali decides the boundary, and no joint field survey has ever settled the question to both governments' satisfaction. This is why the phrase 'where does the Kali river originate' is, in effect, the whole dispute compressed into a single sentence.

Lipulekh Pass sits at roughly 5,000 to 5,200 metres and has long been a key crossing toward the Tibetan trading town of Taklakot (Purang/Burang). It is the pass India and China have repeatedly agreed to use for trade and for the Kailash-Manasarovar pilgrimage, which is precisely why Nepal reacts strongly whenever the two neighbours make decisions about it without consulting Kathmandu.

Limpiyadhura is the north-western ridge that Nepal identifies as the Kali's source and the westernmost point of its claim. Tinkar Pass lies to the east of Lipulekh and became more important to local Byansi (Byas valley) traders after India restricted movement through Lipulekh following the 1962 Sino-Indian War. These passes were the arteries of a centuries-old cross-Himalayan trade in salt, wool, grain and livestock long before they became lines on a disputed map.

Understanding the passes matters because the modern flashpoints are almost always about access: a road built up to Lipulekh, or a trade route reopened through it. To Nepal, any such move on the ground implies acceptance of India's boundary reading; to India, the same move is simply development within its own territory.

The practical dispute over Kalapani dates to the aftermath of the 1962 Sino-Indian War, when Indian security personnel occupied the Kalapani area near the tri-junction and never left. An Indian police post was established there in the 1950s, and from 1979 the site has been held by the Indo-Tibetan Border Police (ITBP). Nepal's objections crystallised in the 1990s, becoming prominent around the 1996 Mahakali Treaty debate and formal protests from 1997 onward.

The issue flared internationally in May 2015, when a joint statement issued during Indian Prime Minister Narendra Modi's visit to China (Point 28 of a 41-point declaration) agreed to expand border trade through Lipulekh Pass. Nepal was neither consulted nor notified, and its Ministry of Foreign Affairs (MoFA) sent diplomatic notes to both New Delhi and Beijing asserting that Limpiyadhura, Lipulekh and Kalapani are Nepali under the Sugauli Treaty.

Tensions rose again on 2 November 2019, when India released a new official political map (its eighth edition, redrawn after the reorganisation of Jammu and Kashmir) that showed Kalapani inside Indian territory. Nepal objected, and the stage was set for the sharpest escalation the following year.

The immediate trigger in 2020 was infrastructure. On 8 May 2020, India's Defence Minister inaugurated a Himalayan link road running up to Lipulekh, intended to shorten the journey toward Kailash-Manasarovar. Nepal's government said it had 'learnt with regret' of the inauguration and protested that the road passed through territory Nepal claims. India replied that the road lay 'completely within' Indian territory.

Nepal responded by redrawing its own map. On 20 May 2020 (2077 BS), the Council of Ministers released a new official political map incorporating Limpiyadhura, Kalapani and Lipulekh. To give the map constitutional force, Nepal then amended the constitution: the House of Representatives passed the Second Amendment Bill unanimously on 13 June 2020 (with 258 votes in favour and none against), the National Assembly followed on 18 June 2020, and President Bidhya Devi Bhandari authenticated it. The new map was inserted into Schedule 3 of the Constitution and appears on Nepal's national emblem.

India 'noted' the amendment and continued to assert its own claim, calling Nepal's move an artificial enlargement of territory. The two governments have agreed in principle to resolve the boundary through dialogue via the foreign-secretary mechanism, but no substantive negotiation has settled it. The dispute has since recurred, notably when India and China again agreed to reopen Lipulekh trade in 2025, prompting fresh, cross-party protests in Nepal.

Both governments accept the Sugauli Treaty and both agree the Kali River is the border. They differ only on where that river begins, and every other disagreement flows from that single point. Nepal frames the issue as treaty fidelity and historical maps; India frames it as long-standing administration and effective control on the ground.

The table of positions below distils the two readings. It is deliberately neutral: it sets out what each side asserts rather than judging which is correct, because the legal and hydrological questions remain genuinely contested and have never been jointly adjudicated.