Conflict over Trading Privileges
On June 23, 1757, British East India Company troops defeated the army of Nawab Siraj-ud-daula at Plassey in Bengal. The battlefield lay beside the Bhagirathi River, near routes to the capital, Murshidabad. Behind the fighting lay both European commercial rivalry and struggles over power and revenue within Bengal's court.
Tensions had intensified the previous year. In August 1756 testimony, Company officer David Rannie acknowledged misuse of duty-free passes, protection of local people not employed by the Company, and its collection of various taxes within its jurisdiction, harming the nawab's revenues. After Siraj captured Calcutta, the Company brought troops from southern India to counterattack, recovering the city early in 1757 and then taking the French settlement at Chandernagore.
A Secret Agreement to Replace the Ruler
Robert Clive led the Company's expeditionary force, while William Watts maintained contacts around the court. The Company agreed to help Mir Jafar, an important commander of the nawab, obtain rule over Bengal, Bihar, and Orissa in return for land, compensation, and commercial guarantees. War aims expanded from disputes over settlements and trade to replacing the ruler.
The partnership involved deception. On May 17, 1757, Calcutta's Select Committee decided to draw up two agreements: one promised a large payment to intermediary Omichand, while the other omitted it, with Jafar told which would be honored. Drawing on correspondence, historian Sushil Chaudhury argues that the Company actively organized and promoted the coup rather than passively accepting court opponents' invitation. Its agents nevertheless remained worried that local allies might stand aside in battle.
Numbers and Positions Were Not the Same as Fighting Power
Clive's postbattle report stated that he marched from Chandernagore on June 13 with about 1,000 European soldiers, 2,000 Indian troops, and eight guns, crossed the river on the 22nd, and reached the grove at Plassey that night. Indian soldiers constituted most Company combatants; the force should not be imagined as wholly British.
The same report estimated the opposing army at 15,000 cavalry, 35,000 infantry, and more than forty guns, figures that remain the victor's approximations. Among the nawab's forces, Mir Madan's contingent and French gunners fought actively, while troops under Jafar and others did not commit together. Divided command prevented numerical superiority on paper from translating fully into battlefield coordination.
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From Cannonade to the Loss of the Camp
On the morning of the 23rd, the nawab's army advanced toward the grove and opened fire from near tanks and elevated ground. Company soldiers sheltered behind the grove's surrounding earth banks, reducing exposure. Clive's next-day report records that after Madan and other officers died, forward troops withdrew from a tank and the Company occupied it; the French fell back to the old camp's breastwork and continued resisting.
As Company guns and infantry advanced further, fighting moved to the camp's corners and nearby heights, eventually routing the nawab's army. Jafar's troops, maneuvering near the Company's right without identifying signals, even came under Company fire. This detail shows that secret cooperation was not a frictionless, predetermined rendezvous: political agreement, local resistance, and decisions in the moment combined to produce the result.
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Victory Becomes a Throne and Payments
Jafar met Clive the day after the battle, then proceeded to Murshidabad. In his July 26 report, Clive described entering the capital on June 29 and seating Jafar on the ruler's throne. Siraj fled and was captured; Clive's July 4 letter reported that Jafar's son Miran and others had killed him. Regime change thus included pursuit and elimination of the former ruler.
The agreement required ten million rupees for the Company, with separate compensation for European, local, and Armenian residents who had suffered losses. The treasury could not meet the demands immediately. With mediation by the Jagat Seth banking family, the British agreed to take half first, partly in gold and silver objects, jewels, and goods, with the remainder over three years. Claims arising from military support became an immediate fiscal burden for the new government.
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Land, Trade, and New Power Relations
The Company also gained land within Calcutta's ditch and a defined area outside it, together with zamindari rights southward from the city to Kulpi. The terms required payment of land revenue to the government at existing rates, so this did not amount to control of all Bengal's finances in 1757. French settlements and property were to be surrendered, and the French were barred from reestablishing settlements in the three provinces.
In its July 14 report to London, the Select Committee connected victory directly with procurement funds: money had been allocated to centers of production and purchase, while expected installment payments could reduce the need to import bullion over the following years. Watts also reported reassuring residents in the capital and preventing their flight. These records show Plassey changing more than the ruler's name: it altered transfers of wealth, commercial competition, and the local government's dependence on the Company.
References: [1]