Battle of Plassey

Background

The English East India Company had traded in Bengal since the seventeenth century, establishing a settlement at Calcutta around Fort William after Job Charnock's arrival in 1690 and securing broad trading privileges through a 1717 farman from Mughal Emperor Farrukhsiyar. By the mid-eighteenth century, Bengal was among the wealthiest provinces of the by-then largely nominal Mughal Empire, governed with effective autonomy by its Nawabs. Alivardi Khan ruled ably for two decades before his death in 1756, holding off both Maratha incursions and Company overreach, but his young grandson and successor, Siraj-ud-Daulah, inherited rising tensions with the Company over its unauthorized fortification of Calcutta and its misuse of trading privileges (dastaks) to evade local taxes. In June 1756, Siraj's forces captured Fort William and imprisoned a group of British captives overnight in a small cell, an episode that became known as the Black Hole of Calcutta. Contemporary British accounts, chiefly that of survivor John Zephaniah Holwell, claimed a very high death toll among the prisoners, a figure historians now regard as substantially exaggerated, though the episode nonetheless inflamed British opinion and provided the pretext for a military response.

Prelude

Robert Clive led a Company force that retook Calcutta in January 1757 and compelled Siraj-ud-Daulah to sign the Treaty of Alinagar, restoring Company privileges. Behind the scenes, Company agents opened secret negotiations with disaffected figures at Siraj's court, including his commander-in-chief Mir Jafar and the influential Marwari banking house of Jagat Seth, promising to install Mir Jafar as Nawab in exchange for his forces standing down during the coming battle. The negotiations also involved the deception of the broker Amin Chand (Omichund), who was shown a forged version of the agreement after threatening to expose the conspiracy unless paid a large sum.

The Battle

Clive's force, numbering roughly 3,000 European and Indian sepoy troops with artillery, faced a much larger Nawabi army of some 50,000, reinforced by a contingent of French artillery under an officer named Sinfray. Heavy rain during the battle reportedly spoiled the Nawab's poorly covered gunpowder while the British kept their own dry. The death of Siraj's loyal commander Mir Madan, killed by artillery fire early in the engagement, badly damaged Nawabi morale. Crucially, the divisions commanded by Mir Jafar and by another commander, Rai Durlabh, remained inactive for most of the battle as agreed in the secret negotiations, leaving Siraj's remaining forces isolated. Siraj-ud-Daulah fled the field as his army disintegrated.

Aftermath

Siraj-ud-Daulah was captured near Murshidabad and executed on the orders of Miran, Mir Jafar's son. Mir Jafar was installed as Nawab but ruled as a subordinate of the Company, which extracted large payments and territorial concessions, including a substantial personal fortune for Clive. The Company's position in Bengal was further entrenched after its victory at the Battle of Buxar in 1764 against a coalition that included the Mughal emperor Shah Alam II, which led in 1765 to the Company's acquisition of the Diwani, or right to collect revenue, over Bengal, Bihar, and Odisha. Company revenue extraction in the following years is widely cited among the contributing causes of the Bengal famine of 1770, in which a substantial portion of the region's population is estimated to have died. The resulting arrangement, in which the Company collected Bengal's revenue while a nominally separate Nawab's administration retained judicial and policing functions, produced an unwieldy "dual government" that lasted until 1772, when Governor Warren Hastings brought revenue and administrative control more directly under Company management; Hastings became the first Governor-General of Bengal in 1773 under Parliament's Regulating Act, which also introduced the first formal British parliamentary oversight of Company rule in India.

Significance

Plassey is conventionally treated as the opening act of British colonial rule in India, transforming the East India Company from a trading concern into a territorial power. The wealth and administrative control it gained in Bengal financed the Company's subsequent military and political expansion across the subcontinent over the following century. Clive himself, already noted for his earlier defense of Arcot during the Carnatic Wars, returned to Britain enormously enriched and was later made Baron Clive of Plassey, though the scale of the wealth he and other Company officials extracted from Bengal drew sustained parliamentary scrutiny and an unsuccessful impeachment attempt in the 1770s. Later Bengali chroniclers, notably Ghulam Husain Khan in his Persian-language Seir Mutaqherin, offered a contemporary Indian perspective critical of the Company's conduct, complementing the fuller but more partisan English-language accounts, such as Robert Orme's near-contemporary History of the Military Transactions of the British Nation in Indostan, on which much of the traditional narrative of the battle depends.