Siraj-ud-Daulah became the Nawab of Bengal after Alivardi Khan.
The Battle of Plassey was fought between Siraj-ud-Daulah, the then Nawab of Bengal along with his French allies, and the East India Company on 23 June 1757.
The battle was the result of British expansion and ended with the victory of the East India Company which then successfully gained control over Calcutta.