Battle of Buxar 1764: How the East India Company Won Legal Sovereignty Over Bengal

The Battle of Buxar 1764, fought on 22 October 1764 on a level plain by the Ganga at Baksar (Buxar) in present-day Bihar, was the engagement that converted the East India Company from a trading corporation with a private army into the legal master of Bengal, Bihar, and Orissa. Where the earlier Battle of Plassey 1757 had been a small fight rigged by conspiracy, Buxar was a genuine military contest fought against the three most important Indo-Muslim powers of the day: Mir Qasim, the deposed Nawab of Bengal; Shuja-ud-Daula, the Nawab Wazir of Awadh; and Shah Alam II, the titular Mughal Emperor. Major Hector Munro, commanding around 7,072 Company troops, defeated their combined army of perhaps 40,000 to 50,000 in a few hours of disciplined infantry work and decisive cavalry pursuit. The Treaty of Allahabad signed nine months later, in August 1765, transferred the Diwani — the right to collect revenue and administer civil justice — of Bengal, Bihar, and Orissa to the Company. From that grant flows the entire architecture of the British Indian Empire. Most modern historians, R.C. Majumdar and Bipan Chandra among them, treat Buxar rather than Plassey as the genuine constitutional beginning of British rule in India.

Quick Facts About the Battle of Buxar 1764

• Date: 22 October 1764
• Location: Buxar (Baksar), on the south bank of the Ganga in Bihar, about 130 km west of Patna
• Belligerents: English East India Company vs combined armies of Mir Qasim of Bengal, Shuja-ud-Daula Nawab Wazir of Awadh, and the Mughal Emperor Shah Alam II
• Commanders: Major Hector Munro for the Company; Shuja-ud-Daula commanded the allied force; Mir Qasim’s troops were under European officers including Walter Reinhardt (Sumru) and Markar
• Strength: Approximately 7,072 Company troops including 857 European infantry, 5,297 sepoys, 918 cavalry vs an allied army of 40,000 to 50,000
• Casualties: Company: 847 killed and wounded; allies: roughly 2,000 killed, 130 cannon captured, war chest of about 50 lakh rupees seized
• Outcome: Decisive Company victory; Mir Qasim fled and died in poverty in 1777; Shah Alam II joined the British; Shuja-ud-Daula resisted until his army disintegrated in 1765
• Treaty: Treaty of Allahabad (12 and 16 August 1765) — two separate treaties signed by Robert Clive with Shah Alam II and Shuja-ud-Daula
• Constitutional consequence: Grant of Diwani of Bengal, Bihar, and Orissa to the East India Company

Background: From Plassey to Buxar

The seven years between Plassey and Buxar saw the East India Company exhaust three Bengal nawabs. Mir Jafar, installed after Plassey, defaulted on his Plassey-era payments and intrigued with the Dutch. In 1760 the Company forced his replacement by his son-in-law Mir Qasim, a far more capable ruler than the Company had bargained for.

Mir Qasim moved his capital from Murshidabad to Munger in 1762, putting distance between himself and the Company at Calcutta. He reorganised his army with European drill, hired the Armenian Gurghin Khan as his commander, set up an arms factory at Munger that produced muskets equal to European quality, and reformed the revenue system. Most importantly, he confronted the central abuse of the post-Plassey arrangement: Company servants were extending the Company’s customs-free trading permit, the dastak, to their own private business, ruining native Indian merchants who had to pay full duties.

When the Company refused to negotiate, Mir Qasim in March 1763 abolished all internal duties altogether, thus equalising native and Company traders at zero. The Company found this intolerable. War broke out. In a series of engagements through 1763 — Katwa, Murshidabad, Giria, Sooty, Udhwa Nala — Mir Qasim’s army was defeated by Major Adams. The Patna massacre of October 1763, in which Walter Reinhardt killed about 200 European prisoners on Mir Qasim’s orders, gave the Company a propaganda atrocity. Mir Qasim fled west to Awadh.

There he persuaded the Nawab Wazir of Awadh, Shuja-ud-Daula, and the fugitive Mughal Emperor Shah Alam II, who had been wandering since 1758, to form a confederacy against the Company. The three armies converged at Buxar in October 1764.

The Allied Confederacy and Its Weaknesses

The allied force at Buxar looked formidable on paper. Shuja-ud-Daula brought the bulk of the army — Persian and Afghan cavalry of high quality. Shah Alam II brought the prestige of the Mughal throne, however depleted. Mir Qasim brought treasure and European-trained sepoys under Markar and Reinhardt.

But the alliance was incoherent. Mir Qasim distrusted Shuja-ud-Daula, who had taken his treasure as security and refused to return it. Shuja-ud-Daula resented serving alongside the Mughal Emperor whose authority he no longer recognised. Mir Qasim, suspecting Reinhardt of disloyalty, kept his European sepoys in reserve away from the battlefield. Shah Alam II had no army of his own and his political instincts were already turning toward whichever power could restore him to Delhi.

The Company army under Hector Munro had its own problems. Just weeks before Buxar, the Bengal sepoys had mutinied at Manjhi over arrears of pay and harsh discipline. Munro responded by blowing 24 ringleaders from the mouths of cannons — the gruesome but effective punishment that the Company would use again at later moments. The Bengal sepoys who fought at Buxar did so under no illusions about Munro’s authority.

Course of the Battle

At dawn on 22 October 1764 Shuja-ud-Daula’s army deployed in standard Indian formation: artillery in front, infantry behind, cavalry on the wings. Munro deployed his roughly 7,000 men in the European linear formation: three lines of infantry with field guns in the intervals and cavalry on the flanks.

The battle opened with a long-range artillery duel. Shuja-ud-Daula then ordered a cavalry charge against the Company’s left flank, which was momentarily exposed. The charge nearly broke the Company line, but Munro committed his reserve and the disciplined volley fire of the British infantry tore the Awadhi cavalry apart at close range. Mir Qasim’s European-trained sepoys, kept in reserve and never committed, did not engage.

By around noon Shuja-ud-Daula’s army began to dissolve. The Nawab Wazir himself fled, blowing up his own pontoon bridge across the river behind him to prevent pursuit but also stranding thousands of his own troops on the wrong bank. Mughal Emperor Shah Alam II remained in his camp, calculating, and surrendered to Munro before the day ended. Mir Qasim escaped with his jewels and disappeared into wandering exile.

The Battle of Buxar 1764 was over in a single day. The Company captured 130 guns and a war chest variously estimated at 50 lakh to 1 crore rupees.

Treaty of Allahabad 1765

After Buxar the Company spent the next nine months consolidating. Robert Clive returned to India as Governor of Bengal for his second term in May 1765 and personally negotiated the settlement. The result was two separate Treaty of Allahabad instruments signed in August 1765, one with the Mughal Emperor and one with the Nawab Wazir of Awadh.

Treaty with Shah Alam II (12 August 1765)

• Shah Alam II issued a farman granting the Diwani of Bengal, Bihar, and Orissa to the East India Company. The Diwani included the right to collect revenue and administer civil justice in the three provinces.
• In return the Company agreed to pay an annual tribute of 26 lakh rupees to the Mughal Emperor.
• Shah Alam was assigned the districts of Kora and Allahabad as his personal demesne and resided at Allahabad under Company protection until 1771, when he returned to Delhi under Maratha escort.

Treaty with Shuja-ud-Daula (16 August 1765)

• Shuja-ud-Daula was restored to most of Awadh except Kora and Allahabad.
• He paid an indemnity of 50 lakh rupees to the Company in instalments.
• He accepted a Company subsidiary force stationed in Awadh and paid for its upkeep — the prototype of the subsidiary alliance system later perfected by Wellesley.
• He undertook never to employ European mercenaries without Company permission and never to give shelter to Mir Qasim.

The settlement created the buffer state of Awadh on the Company’s western frontier, made the Mughal Emperor a Company pensioner in all but name, and most importantly converted the Company into the official revenue authority of Bengal, Bihar, and Orissa.

Dual Government and Its Failure

Robert Clive’s settlement created a system known as the Dual Government of Bengal (1765-1772). The Company held the Diwani (revenue collection and civil justice). The Nawab — Najm-ud-Daula at the time — held the Nizamat (criminal justice, law and order, military matters), with his expenses paid by a Company allowance.

In practice both functions were exercised by the Company through Indian deputies. Muhammad Reza Khan was deputy diwan and deputy nazim simultaneously, answerable to the Company. The system was deliberately designed to give the Company control without responsibility. Clive’s defenders argued it was a transitional arrangement; his critics, including Edmund Burke later, said it was administrative cowardice that produced the catastrophic Bengal Famine of 1770 in which an estimated 10 million people died, roughly a third of the province’s population.

Warren Hastings finally abolished the Dual Government in 1772, transferred the treasury from Murshidabad to Calcutta, and brought the Diwani administration under direct Company officers. The arc that runs from the Battle of Buxar 1764 to the Permanent Settlement of 1793 is the story of how the Company gradually accepted the responsibilities of formal sovereignty it had won at Buxar.

Why Buxar Was More Important Than Plassey

A useful UPSC framework compares the two battles across five dimensions.

Bipan Chandra in History of Modern India treats Buxar as the more important battle because it demonstrated that the Company could defeat a confederation of all the major remaining Indian powers in open battle, and because the Treaty of Allahabad gave the Company a Mughal grant — a recognised constitutional title — to administer the wealthiest provinces of the subcontinent. Plassey gave the Company a Nawab; Buxar gave it a province.

Significance for UPSC Preparation

For GS Paper I (Modern History) the Battle of Buxar 1764 connects to several themes:

• The end of the Mughal centre. Buxar reduced Shah Alam II from emperor to pensioner. The 1772 expulsion of Shah Alam from Allahabad by Warren Hastings, on the grounds that he had sought Maratha protection, completed the political annihilation of the Mughal idea before the formal end at 1858.
• Birth of subsidiary alliance. The Awadh settlement of 1765 contained the kernel of Wellesley’s later doctrine: a Company force stationed in an Indian state, paid for by that state, with diplomatic monopoly granted to the Company. Awadh, Hyderabad, Mysore, the Carnatic, the Maratha states would all be drawn into this system over the next 40 years.
• Drain of wealth begins as policy. With the Diwani in hand, the Company began purchasing its export “investment” — silk, saltpetre, cotton — out of Bengal revenue rather than by importing silver from England. Indian wealth funded the export trade. Dadabhai Naoroji’s Drain Theory has its statistical origin here.

Mains-Style Questions

• “The Battle of Buxar 1764 was militarily and politically more decisive than the Battle of Plassey.” Examine.
• Discuss the provisions and significance of the Treaty of Allahabad 1765 with reference to the establishment of British rule in India.
• The Dual Government of Bengal was an experiment in irresponsible power. Critically evaluate.

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