INS Vikrant, TEJAS, Arjun MBT — indigenisation milestones

UPSC frequently tests indigenisation milestones as factual recalls with focus on launch years, first operational dates, and development agencies (HAL, DRDO, MDL). Questions typically ask identification of platforms, their indigenous content percentage, or timeline of induction. Common trap: confusing INS Vikrant with INS Vikramaditya; candidates often mix up TEJAS variants or Arjun deployment timeline.