During the Cold War, if USA launched a nuke-loaded missile, Soviet satellites would inform the Soviet army in 3 seconds and in less than 45 seconds Soviet counter-missiles would be on their way. Recent studies commissioned by US department of Defense included one on nuclear war between India and Pakistan. This was their scenario.................
The Pakistan army decides to launch a nuke-missile towards India. They don't need any permission from their government, and promptly order the countdowns.
Indian technology is highly advanced. In less than 8 seconds, Indian army detects the Pak countdown and decides to launch a missile in retribution. But they need permission from the Government of India. They submit their request to the Indian President. The President forwards it to the Cabinet. The Prime Minister calls an emergency Lok Sabha session.
The LS meets! after three days, but due to several walkouts and severe protests by the opposition, it gets adjourned indefinitely. The President asks for a quick decision. In the mean time, the Pak missile failed to take off due to unknown reasons. Their attempts for a relaunch are still on.