The source-backed, question-specific record explains: The Battle of Karnal was fought on February 13, 1739, between the Persian invader Nadir Shah and the Mughal Emperor Muhammad Shah. Nadir Shah won decisively and subsequently looted Delhi, taking away the Peacock Throne and the Koh-i-Noor diamond. 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 A gives Nadir Shah of Persia and satisfies every condition stated in the question. The remaining choices—Ahmad Shah Abdali, Tipu Sultan and Hyder Ali—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 Nadir Shah of Persia without relying on option position.
