Important Battles question: Who was the Nawab of Bengal defeated at the Battle of Plassey in 1757?

The verified answer to “Important Battles question: Who was the Nawab of Bengal defeated at the Battle of Plassey in 1757?” is Siraj ud-Daulah, option C. The source-backed, question-specific record explains: Siraj ud-Daulah was the last independent Nawab of Bengal. He was defeated by Robert Clive at the Battle of Plassey on June 23 1757 due to the treachery of his commander Mir Jafar who didn't join the battle. This evidence establishes the historical relationship required in this Important Battles item. A correct solution must preserve the exact battle, date, participants, commander, location, outcome or significance requested by the stem. Similar periods, genres or national traditions do not make two battle facts interchangeable. Option C gives Siraj ud-Daulah and satisfies every condition stated in the question. The remaining choices—Mir Jafar, Mir Qasim and Alivardi Khan—do not satisfy the complete requirement. The reliable checking method is to identify the named battle first, recall or verify its verified participant or outcome, and then read qualifiers such as “both works,” “original language,” “first published,” “correctly matched” or “incorrectly matched.” These qualifiers determine what counts as the answer. Replaying that method for this Important Battles question confirms Siraj ud-Daulah without relying on option position.