The verified answer to “Important Battles question: The Battle of Nagpur (1817) marked the fall of which Maratha state?” is Bhonsle of Nagpur, option B. The source-backed, question-specific record explains: The Battle of Nagpur (November 26-27 1817) during the Third Anglo-Maratha War was fought between the British East India Company and Appa Sahib Bhonsle the ruler of the Nagpur Maratha state. The British won and Nagpur eventually came under British control. 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 Bhonsle of Nagpur and satisfies every condition stated in the question. The remaining choices—Peshwa's territory, Scindia of Gwalior and Holkar of Indore—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 Bhonsle of Nagpur without relying on option position. This approach builds accurate historical knowledge and careful option elimination for SSC, Railway, Banking, Defence, State and other competitive examinations.