Bhutan and the Kingdom of Cooch Behar (1730-1774)

The relationship between Bhutan and the Kingdom of Cooch Behar (also spelled Koch Behar or Koch Bihar) during the period from 1730 to 1774 represents a critical chapter in the political history of the eastern Himalayan region. What began as an alliance of convenience — with Cooch Behar seeking Bhutanese military assistance against Mughal encroachments — gradually evolved into Bhutanese suzerainty over the lowland kingdom. This arrangement endured for over four decades before collapsing in 1772, when a disputed succession in Cooch Behar drew the British East India Company into the conflict, resulting in the first Anglo-Bhutanese military confrontation and ultimately reshaping the political landscape of the region.^[1]

The resolution of this conflict, the Treaty of Peace signed on 25 April 1774, was a milestone in Bhutanese diplomatic history. It marked the first formal agreement between Bhutan and a European power, established the boundaries of Bhutanese territorial control, and opened the door to British commercial and diplomatic engagement with the Himalayan region, including the famous mission of George Bogle to Tibet later that same year.^[2]

Background: Cooch Behar Before Bhutanese Involvement

The Kingdom of Cooch Behar, situated on the plains at the foot of the Bhutanese hills in what is today the Cooch Behar district of West Bengal, India, was a Hindu kingdom founded by the Koch dynasty in the 16th century. At its height, the Koch kingdom controlled a vast territory stretching across much of present-day northeastern India. However, by the early 18th century, the kingdom had declined significantly, caught between the expanding Mughal Empire to the west and various regional powers competing for influence in northeastern India.^[3]

The rulers of Cooch Behar controlled a strategically important territory that included several of the Duars — the narrow strips of land at the base of the Himalayan foothills that served as the principal gateways between the plains of Bengal and the mountain kingdoms of Bhutan and Tibet. Control of the Duars meant control of trade routes, revenue, and access between the lowlands and the highlands.

Bhutanese Intervention (1730)

In 1730, the Raja of Cooch Behar, facing Mughal military pressure, appealed to Bhutan for assistance. The Bhutanese government, led by the Druk Desi (the secular head of state in the Zhabdrung's dual system of governance), responded positively, seeing an opportunity to extend Bhutanese influence into the lucrative lowland territories and to gain control over the Bengal Duars.^[4]

Bhutanese troops assisted the Cooch Behar monarchy in repelling the immediate threats, and in exchange, Bhutan established a significant degree of control over Cooch Behar's affairs. Over the following decades, this relationship deepened into effective suzerainty. By the mid-1760s, the Bhutanese government stationed a permanent garrison in Cooch Behar and exercised direct influence over the kingdom's civil administration, including the appointment of key officials and the selection of royal successors.^[1]

Succession Crisis and British Intervention (1772)

The arrangement between Bhutan and Cooch Behar began to unravel in the early 1770s when a succession dispute split the Cooch Behar court. The Druk Desi supported one candidate for the throne, while a rival claimant sought external assistance to resist Bhutanese domination. In a fateful decision, the anti-Bhutanese faction invited the British East India Company — which by this time had established itself as the dominant military power in Bengal — to intervene on their behalf.^[1]

The British, under Governor-General Warren Hastings, saw the invitation as an opportunity to expand their influence into the Himalayan frontier region and to open trade routes to Tibet. In 1772, a British expeditionary force marched into Cooch Behar, expelled the Bhutanese garrison, and quickly advanced into Bhutanese territory. The Bhutanese forces, unaccustomed to European military tactics and weaponry, were unable to mount an effective defence against the well-equipped British troops.^[5]

Diplomatic Intervention of the Panchen Lama

Faced with a military situation he could not resolve by force, the Druk Desi appealed to the Panchen Lama of Tibet, the 3rd Panchen Lama Lobsang Palden Yeshe, who was serving as regent for the young 8th Dalai Lama. The Panchen Lama, who had his own interest in preventing British encroachment into the Himalayan region, wrote to Warren Hastings on behalf of Bhutan, urging a peaceful resolution to the conflict. This intervention proved decisive, as Hastings saw in the Panchen Lama's correspondence an opportunity to open diplomatic and commercial relations with Tibet, a long-cherished goal of the East India Company.^[1]

Treaty of Peace (1774)

On 25 April 1774, the Druk Desi and the British East India Company signed a Treaty of Peace, ending the conflict. Under the terms of the treaty, Bhutan agreed to withdraw to its pre-1730 boundaries, effectively abandoning its claim to suzerainty over Cooch Behar. Bhutan also paid a symbolic tribute of five horses to the British and, among other concessions, allowed the Company to harvest timber from Bhutanese forests.^[1]

In exchange, the British returned certain territories they had occupied during the campaign. In 1784, the British government transferred the Bengal Duars to Bhutan, territories whose boundaries had been poorly defined and that would remain a source of contention between Bhutan and British India for nearly a century, ultimately contributing to the Duar War of 1864-65.^[6]

Consequences

The Treaty of 1774 had far-reaching consequences for all parties involved. Cooch Behar, having traded Bhutanese suzerainty for British protection, became effectively a princely state under British paramountcy, a status it would retain until Indian independence in 1947. Bhutan lost its lowland dependencies but preserved its independence, a status it maintained in part by carefully managing its relationships with both British India and Tibet throughout the 19th and early 20th centuries.

For the British, the treaty opened the door to diplomatic engagement with Tibet. In 1774, Warren Hastings dispatched George Bogle on a mission to the court of the Panchen Lama at Tashilhunpo, the first official British diplomatic contact with Tibet. The Cooch Behar affair thus set in motion a chain of events that would shape British Himalayan policy for over a century.^[2]

References

1. Bhutan — British Intrusion, 1772-1907, Country Studies (Library of Congress)
2. History of Bhutan, Wikipedia
3. Cooch Behar State, Wikipedia
4. Bhutan in the 17th and 18th Centuries, Facts and Details
5. Military history of Bhutan, Wikipedia
6. Duar War, Wikipedia