Important Battles question: In the Battle of Seringapatam (1799) who died defending his capital?

The verified answer to “Important Battles question: In the Battle of Seringapatam (1799) who died defending his capital?” is Tipu Sultan, option B. The source-backed, question-specific record explains: Tipu Sultan the ruler of Mysore died defending his capital Seringapatam (Srirangapatna) on May 4 1799 during the Fourth Anglo-Mysore War. His death at the age of 48 ended Mysore's resistance to British power. 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 B gives Tipu Sultan and satisfies every condition stated in the question. The remaining choices—Hyder Ali, Nizam Ali Khan and Diwan Poornaiah—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 Tipu Sultan without relying on option position.