Which one of the following is considered to be the most significant battle in the establishment of British supremacy in India?

Key Fact(s)

The Battle of Buxar, fought in 1764, was a decisive victory of the English East India Company over a combined Indian alliance comprising Mir Qasim, Shuja-ud-Daula, and Emperor Shah Alam II. Unlike the Battle of Plassey (1757), which depended heavily on conspiracy, Buxar was a clear military victory that demonstrated British superior discipline and organization.

The outcome led to the Treaty of Allahabad (1765), granting the Company the Diwani rights of Bengal, Bihar, and Orissa. Control over revenue enabled the British to maintain a standing army and expand across India. Therefore, Buxar laid the legal, financial, and military foundation of British rule in India.