Battle of Buxar (1764)

After the Battle of Plassey, Mir Jafar gave millions of rupees to Robert Clive and the East India Company as a reward for making him the Nawab. They kept demanding more. Mir Jafar was saddened when he realized that the British were planning to drain the entire wealth of Bengal. In 1760, the British replaced Mir Jafar with Mir Qasim. Mir Qasim was Mir Jafar's father-in-law. Thus, Mir Jafar, who had betrayed Siraj-ud-Daulah, was betrayed by the British within three years.

The new ruler of Bengal, Mir Qasim, gave the British many times more money than Mir Jafar had given. However, they did not stop demanding more money and made the lives of the common people of Bengal miserable. When the Nawab's cooperation waned, the British declared war on him. Mir Qasim decided to fight the British bravely. Thus, the stage was set for another war.

Mir Qasim was defeated in the battles with the British. In 1763, he entered Awadh (Uttar Pradesh) and formed an alliance with the Nawab of Awadh, Shuja-ud-Daulah, and the Mughal emperor Shah Alam. In October 1764, they attacked the British army at Buxar. However, they were defeated by the strong British force. Mir Qasim, who fled, was never heard from again. Shuja-ud-Daulah sought refuge in a neighboring country, and Shah Alam made peace with the British.