Important Battles question: What happened to Lahore during the Mongol invasion of 1241 in the reign of Bahram Shah?

The source-backed, question-specific record explains: In 1241 Mongol forces reached Lahore, which was captured and plundered while the Delhi Sultanate failed to mount an effective defence. The original question invented a repulse at a Battle of Jalandhar led by Bahram Shah and reversed the documented outcome. This evidence establishes the historical relationship required in this Important Battles item. Option A gives The Mongols captured and sacked the city and satisfies every condition stated in the question. The remaining choices—Bahram Shah decisively defeated them at Jalandhar, The Mongols became Delhi’s allies and Iltutmish personally expelled them—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 The Mongols captured and sacked the city without relying on option position. This approach builds accurate historical knowledge and careful option elimination for SSC, Railway, Banking, Defence, State and other.