The Battle of Plassey was in

Correct option is D

The Battle of Plassey was fought on June 23, 1757 between the forces of the British East India Company, led by Robert Clive, and the army of the Nawab of Bengal, Siraj-ud-Daula. This battle took place near the village of Plassey (now in West Bengal).

The battle was significant because the British victory allowed the East India Company to establish control over Bengal, which was a turning point in the British colonization of India. The victory was made possible partly due to the betrayal of Mir Jafar, a commander in the Nawab's army, who defected to the British side. This battle is often seen as a major event leading to British dominance in India.