Who became the Nawab of Bengal after the death of Alivardi Khan in 1756?

Siraj ud-Daulah

The correct answer is Option 2- Siraj ud-Daulah

Siraj-ud-Daulah became the Nawab of Bengal after the death of Alivardi Khan in 1756.

Siraj-ud-Daulah was the last independent Nawab of Bengal. He was a strong and ambitious ruler, but he was also suspicious and indecisive. This led to his downfall in the Battle of Plassey in 1757, where he was defeated by the British East India Company.

The Battle of Plassey was a turning point in Indian history. It marked the beginning of British colonial rule in India.

Siraj-ud-Daulah was killed after the battle, and his successor, Mir Jafar, became a puppet of the British. The British East India Company used its influence to expand its power and control over Bengal, and eventually over the entire Indian subcontinent.