Sirajudaula, the Nawab of Bengal was defeated in which of the following battles in 1757?

Battle of Plassey

The correct answer is Option (2) → Battle of Plassey

After decisive victory at the Battle of Plassey in 1757, the British became the rulers of Bengal.

The Battle of Plassey, fought on June 23, 1757, marked a significant turning point in Indian history. The British East India Company, under Robert Clive, defeated the Nawab of Bengal, Siraj-ud-Daulah, with the help of conspirators like Mir Jafar. As a result, the British gained political and economic control over Bengal, which became the cornerstone of their colonial expansion in India.