The Battle of Buxar was fought between 22 and 23 October 1764, between the forces under the command of the British East India Company, led by Hector Munro, and the combined armies of Balwant Singh, Raja of Benaras; Mir Qasim, Nawab of Bengal till 1764; the Nawab of Awadh, Shuja-ud-Daula; and the Mughal Emperor, Shah Alam II. Wikipedia