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The 1764 battle in which the East India Company defeated a combined Indian army and won the Diwani of Bengal, Bihar and Orissa through the Treaty of Allahabad.
The Battle of Buxar was fought in 1764 between the English East India Company and a coalition of three Indian powers — Mir Qasim, the Nawab of Bengal; Shuja-ud-Daula, the Nawab of Awadh; and Shah Alam II, the Mughal Emperor. The Company's forces under Major Hector Munro defeated the alliance. Where Plassey in 1757 had made the Company a major player in Bengal politics, Buxar converted that influence into direct political and administrative power. Through the Treaty of Allahabad in 1765 the Company obtained the Diwani — the right to collect revenue — in Bengal, Bihar and Orissa, which began its career as a territorial administrator in India.
Type: PhenomenonYear — 1764, seven years after Plassey.
The coalition — Mir Qasim (Nawab of Bengal), Shuja-ud-Daula (Nawab of Awadh) and Shah Alam II (the Mughal Emperor), the only occasion on which these three combined against the Company.
Company commander — Major Hector Munro.
Cause — Mir Qasim's attempt to end the Company's abuse of dastaks, the passes permitting duty-free trade.
Outcome — the Treaty of Allahabad (1765) granted the Company the Diwani of Bengal, Bihar and Orissa.
Consequence — the Company became a revenue-collecting territorial authority rather than merely an influential trading power.
Frequency: The Battle of Buxar and the Treaty of Allahabad are staple topics in modern Indian history for UPSC, SSC, banking and railway examinations.
Mir Qasim became Nawab of Bengal in 1760 and the Company expected him to remain dependent on it. Instead he moved to consolidate his authority and limit British interference. The decisive quarrel was over dastaks — passes that entitled the Company to duty-free trade. Company officials had begun using them for their own private trade and extending them to Indian merchants, which drained the Nawab's customs revenue and undercut local traders. Mir Qasim's attempt to end that abuse brought open conflict, and he sought allies in the Nawab of Awadh and the Mughal Emperor.
The Battle of Plassey makes the East India Company the dominant influence in Bengal politics.
Mir Qasim becomes Nawab of Bengal.
Mir Qasim seeks to consolidate power and end the Company's misuse of dastaks, leading to open conflict.
The Battle of Buxar. Major Hector Munro defeats the combined forces of Mir Qasim, Shuja-ud-Daula and Shah Alam II.
The Treaty of Allahabad grants the Company the Diwani of Bengal, Bihar and Orissa.
| Aspect | Battle of Plassey (1757) | Battle of Buxar (1764) |
|---|---|---|
| Company commander | Robert Clive | Major Hector Munro |
| Indian side | Siraj-ud-Daulah, Nawab of Bengal, alone | Coalition of Mir Qasim, Shuja-ud-Daula and Shah Alam II |
| How it was decided | Largely by conspiracy and defection | By actual military engagement |
| Immediate gain | A friendly Nawab and control of Bengal's resources | The Diwani of Bengal, Bihar and Orissa |
| Nature of power gained | Political influence | Legal and administrative authority to collect revenue |
In Mughal administration, provincial authority was split between two offices. The Diwan handled revenue collection and civil administration, while the Nizam handled law and order, policing and criminal justice. The Treaty of Allahabad gave the Company the Diwani — the revenue side — while the Nawab retained the Nizamat on paper. This produced the arrangement later called the dual system: the Company held the money and therefore the real power, while the Nawab held nominal responsibility for administration without the resources to discharge it. Because the grant came from the Mughal Emperor, it also gave the Company's revenue collection a legal basis within the existing Indian constitutional order rather than resting purely on conquest.
It is like being given control of an estate's accounts and rents while someone else keeps the title and the duty to maintain it — the person with the money decides what actually happens.
Buxar is the more decisive of the two battles, even though Plassey is the more famous. At Plassey the Company defeated one Nawab through defection; at Buxar it defeated the combined forces of two Nawabs and the Mughal Emperor in open battle, which demonstrated that no existing Indian power could dislodge it from Bengal. The Treaty of Allahabad then gave that dominance a legal form. Holding the Diwani meant the Company financed its Indian operations, including its army, from Indian revenue rather than from British capital — which is what made further expansion self-sustaining. For a Mains answer, the formulation worth using is that Plassey made the Company a kingmaker and Buxar made it a ruler.
Battle of Buxar — 1764; Company commander Major Hector Munro.
Coalition defeated: Mir Qasim (Bengal), Shuja-ud-Daula (Awadh), Shah Alam II (Mughal Emperor).
Cause: Mir Qasim's attempt to end abuse of dastaks (duty-free trade passes).
Treaty of Allahabad, 1765 — granted the Company the Diwani of Bengal, Bihar and Orissa.
Diwani = right to collect revenue; Nizamat = law and order, retained by the Nawab.
Plassey gave influence; Buxar gave formal authority.
The English East India Company under Major Hector Munro defeated a coalition of Mir Qasim, the Nawab of Bengal; Shuja-ud-Daula, the Nawab of Awadh; and Shah Alam II, the Mughal Emperor.
Through the Treaty of Allahabad in 1765 it obtained the Diwani — the right to collect revenue — in Bengal, Bihar and Orissa, which began its career as a territorial administrator.
Dastaks were passes permitting duty-free trade granted to the East India Company. Company officials misused them for private trade and extended them to Indian merchants, draining the Nawab's customs revenue. Mir Qasim's attempt to stop this led to war.
At Plassey the Company defeated a single Nawab largely through defection. At Buxar it defeated two Nawabs and the Mughal Emperor in open battle, and then obtained formal revenue authority through the Treaty of Allahabad.