The Battle of Buxar (1764) was a decisive turning point in India's colonial history. Where the Battle of Plassey (1757) won the Company Bengal by intrigue, Buxar won it by outright military victory — and against not just a Nawab, but the Mughal Emperor himself. Its aftermath — the Treaty of Allahabad and the Dual Government — converted the Company from a trading concern into the true ruler of Bengal, Bihar and Orissa.

Background: What Caused the Battle of Buxar?

The Company had expected Mir Kasim, whom it had installed as Nawab of Bengal, to be a compliant puppet. Instead, he asserted his authority — and clashes over trade and revenue soon escalated into war:

The Battle of Buxar (1764)

On 22 October 1764, the combined armies of Mir Kasim, Nawab Shuja-ud-Daula of Awadh, and Mughal Emperor Shah Alam II were defeated by English forces under Major Hector Munro. The English had already scored successive victories at Katwah, Murshidabad, Giria, Sooty and Munger; the Buxar campaign was short but decisive. Its true significance: the English defeated not only a Nawab but the Mughal Emperor of India — a psychological and political watershed.

Timeline: From Trade Dispute to Diwani (Flowchart)

Impact of the Battle of Buxar

• English as a major power: The victory established the Company as the dominant force in northern India and a contender for supremacy over the whole country.
• Mir Jafar reinstated: Reappointed Nawab (1763); he ceded Midnapore, Burdwan and Chittagong for the army's upkeep and allowed duty-free trade (except a 2% duty on salt).
• Real power with the English: After Mir Jafar's death, his minor son Najim-ud-Daula became Nawab, but actual administration lay with a naib-subahdar who could be hired or fired by the English.

The Treaty of Allahabad (1765)

In August 1765, Robert Clive concluded two treaties at Allahabad:

The Dual Government of Bengal

Clive's Dual System (1765) split governance between the Company and the Nawab:

• Company powers: It controlled the Diwani (revenue collection, from the Mughal emperor) and the Nizamat (police & justice, by nominating the deputy subahdar).
• The advantage: The puppet Nawab appeared to rule and was responsible for law and order, but real sovereign power and money rested with the Company — power without responsibility.
• Deputy Diwans: Mohammad Reza Khan (Bengal, also deputy Nazim) and Raja Sitab Roy (Bihar).

Why the Dual Government Failed

• Trade & industry ruined: Rampant abuse of dastaks wrecked Indian merchants; the famed Bengal silk and cotton-cloth industries were destroyed as the Company dictated quality, quantity and price, punishing dissenting artisans.
• Agriculture devastated: Land was auctioned to the highest bidder yearly; revenue farmers squeezed peasants mercilessly, contributing to the catastrophic Bengal Famine of 1770 (1767–69 crisis).
• Administrative failure: Bengal was split into 30 districts (1769) with English Supervisors — but they focused on maximising revenue and private business, not welfare.
• Company revenue suffered too: Ultimately even the Company's own income and trade declined.

Abolition of the Dual Government (1772)

Warren Hastings, arriving as Governor of Bengal in 1772 with clear instructions from the Court of Directors, ended the system:

• The Company became the Diwan directly; the naib-diwans (Mohammad Reza Khan and Raja Sitab Roy) were removed and put on trial.
• Hastings took over civil justice and stripped the Nawab of Nizamat, giving him only an annual pension of Rs 16 lakh.
• The Company thus assumed direct, de facto control of Bengal, Bihar and Orissa.

Cause & Consequence: The Big Picture