Battle of Plassey (1757): The clash that began British rule in India

On 23 June 1757, a battle that lasted only a few hours changed the course of Indian history. Fought at the village of Plassey in Bengal, it pitted the English East India Company, led by Robert Clive, against Siraj-ud-Daulah, the Nawab of Bengal. Clive's victory marked the moment the Company moved beyond being a trading body and began to gain real political power in India.

The roots of the conflict lay in Bengal's importance to Company trade and the slow decline of Mughal authority. In 1690 a royal order from Mughal emperor Aurangzeb had given the Company duty-free trade rights in Bengal, and that same year it founded Calcutta, later fortified as Fort William. As Mughal power weakened in the 18th century, near-independent Nawabs rose, and their efforts to assert authority brought them into conflict with the Company.

Tensions sharpened when Siraj-ud-Daulah became Nawab in April 1756. He objected to the Company strengthening its Calcutta defences without permission and to its sheltering of a man he had accused of fraud. When the Company ignored his warnings, Siraj captured Calcutta in June 1756. In response, Colonel Robert Clive sailed from Madras with warships and troops, reaching Bengal in December 1756.

Plassey was won less by fighting than by conspiracy. A disaffected group of merchants, bankers and powerful zamindars at the Nawab's court, including the influential Jagat Seth banking family, had turned against Siraj. Clive struck a deal to replace the Nawab with his own commander-in-chief, Mir Jafar. Though Siraj's army of about 50,000 men far outnumbered Clive's 3,000, the betrayal by Mir Jafar meant much of the Nawab's force never truly fought. Siraj was defeated and soon killed, and Mir Jafar was installed as a puppet ruler.

For exams, Plassey is a foundational event in modern Indian history: it began the East India Company's transformation from trader to ruler, set up the system of puppet Nawabs, and led on to the Battle of Buxar (1764) and the grant of Diwani rights. Aspirants should remember the key figures (Clive, Siraj-ud-Daulah, Mir Jafar, Jagat Seths), the date, and the link to Anglo-French rivalry during the Seven Years' War.