Iran's Shiraz Electronics complex was struck thirteen times in seven days, not as collateral damage but as a deliberate, systematic campaign to dismantle the industrial nervous system of a country at war. That image, analysts argue, should be circulating in every relevant ministry in New Delhi. Not because of what it says about Iran but because of what it says about India. For decades, Indian defence planning has operated on the assumption that war happens at the border and that manufacturing corridors are rear-area sanctuaries producing what the frontline needs while remaining beyond the reach of adversary targeting. The US-Iran war has demolished that assumption in real time. From the opening hours of Operation Epic Fury, the US-Israel campaign treated Iran's entire defence industrial ecosystem as a first-wave target. India's defence manufacturing corridors in Uttar Pradesh, Tamil Nadu and Bengaluru are not safe rear areas they are targets that adversaries are already war-gaming. Pakistan's Field Marshal Asim Munir publicly threatened to strike the Jamnagar refinery before Operation Sindoor — a preview of the exact targeting philosophy now being validated over Iran. The command-and-control dimension is equally urgent. A New York Times analysis of satellite imagery from the opening days of the US-Iran war identified seven US military bases across the Gulf that lost communication and radar infrastructure in the first wave of Iranian strikes — the ability to see, communicate and coordinate degraded before the kinetic battle had fully begun. India's C4ISR nodes face the same exposure. The drone economics are unsustainable: Iran's Shahed drones cost $20,000-$50,000 each; the interceptors destroying them cost millions. India has no cheap counter-drone kill chain at the scale this threat demands. Against these warnings sits the compendium of validations that Operation Sindoor provided. Nine terror infrastructure nodes were confirmed by multi-agency intelligence before a single strike was authorised. The entire operation was executed with domestically developed or assembled systems, BrahMos missiles, loitering munitions. India refrained from targeting Pakistani air defences in the early phases not for lack of capability but because it understood which rung of the escalation ladder it was choosing not to climb. When Pakistan's DGMO called on May 10, India accepted a halt but defined what followed as a conditional bilateral understanding rather than a ceasefire, preserving future freedom of action without surrendering the initiative it had established. The contrast with the United States could not be more direct. Washington entered Epic Fury without a defined exit. India entered Sindoor with one. One is still fighting. The other went home. The US-Iran war and Operation Sindoor are not just two conflicts happening simultaneously they are two case studies in opposite approaches to modern warfare, one a compendium of warnings, the other a compendium of validations. The classroom is open. The question is not whether India is watching. The question is whether it is acting before the next exam.