Battle of Plassey

The Battle of Plassey was a decisive victory of the British East India Company, under the leadership of Robert Clive, over the Nawab of Bengal and his French allies on 23 June 1757. The victory was made possible by the defection of Mir Jafar, Nawab Siraj-ud-Daulah's commander in chief as well as much of the Bengal Subah's armies  being earlier committed against an Afghan invasion led by Ahmad Shah Durrani against the Mughal Empire. The battle helped the British East India Company take control of Bengal, Bihar, and Orissa in 1772. Over the next hundred years, they continued to expand their control over vast territories in the rest of the Indian subcontinent, including Burma.

The battle took place at Plassey on the banks of the Hooghly River, about 150 kilometres north of Calcutta (now Kolkata) and south of Murshidabad in West Bengal, then capital of Bengal Subah. The belligerents were the British East India Company, and the Nawab Siraj-ud-Daulah, the last independent Nawab of Bengal. He succeeded Alivardi Khan (his maternal grandfather). Siraj-ud-Daulah had become the Nawab of Bengal the year before, and he had ordered the English to stop the extension of their fortification. Robert Clive bribed Mir Jafar, the commander-in-chief of the Nawab's army, and also promised to make him Nawab of Bengal. Clive defeated Siraj-ud-Daulah at Plassey in 1757 and captured Calcutta.