The source-backed, question-specific record explains: Local residents reported suspicious movement in the Kargil sector on 3 May 1999, after which patrols and surveillance revealed the scale of the intrusion. Infiltration preparations may have preceded detection, but stating that the Kargil War began in April as a settled fact confuses clandestine movement with confirmed hostilities. This evidence establishes the historical relationship required in this Important Battles item. Option A gives 3 May 1999 and satisfies every condition stated in the question. The remaining choices—3 April 1999, 26 July 1999 and 15 August 1999—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. Replaying that method for this Important Battles question confirms 3 May 1999 without relying on option position.