The verified answer to “Important Battles question: The Battle of Delhi (1803) during the Second Anglo-Maratha War resulted in which outcome?” is British under Lake defeated Maratha forces and captured Delhi, option B. The source-backed, question-specific record explains: The Battle of Delhi (September 11, 1803) was fought between British forces under General Lord Lake and the Maratha forces of Daulat Rao Scindia. The British won, capturing Delhi and the blind Mughal Emperor Shah Alam II came under British protection. 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 British under Lake defeated Maratha forces and captured Delhi and satisfies every condition stated in the question. The remaining choices—Maratha victory, Sikh victory and No decisive outcome—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 British under Lake defeated Maratha forces and captured Delhi 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.