The source-backed, question-specific record explains: Second Lieutenant Arun Khetarpal of 17 Poona Horse fought Pakistani armour in the Shakargarh sector and continued engaging enemy tanks after his own tank was hit. He was killed and received the Param Vir Chakra posthumously. The original question incorrectly attached Lieutenant General Sagat Singh to the 54th Infantry Division’s Basantar action. 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 Second Lieutenant Arun Khetarpal and satisfies every condition stated in the question. The remaining choices—Major Kuldeep Singh Chandpuri, Captain Vikram Batra and Major Shaitan Singh—do not satisfy the complete requirement. Depending on the stem, a distractor may name a real commander but attach the wrong title, use a related event involving another power, reverse a correct association, or present a correct statement when the question specifically asks for the incorrect match. 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 Second Lieutenant Arun Khetarpal 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.