Important Battles question: The Battle of Plassey (1757) was fought on the banks of which river?

The verified answer to “Important Battles question: The Battle of Plassey (1757) was fought on the banks of which river?” is Bhagirathi, option C. The source-backed, question-specific record explains: The Battle of Plassey was fought on June 23 1757 at a mango grove called Palashi near the Bhagirathi River in Bengal. 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 Bhagirathi and satisfies every condition stated in the question. The remaining choices—Ganga, Yamuna and Brahmaputra—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 Bhagirathi without relying on option position.