MUMBAI -- India has accused a senior leader of the Pakistani militant group Lashkar-e-Taiba of orchestrating last week's terror attacks that killed at least 172 people here, and demanded the Pakistani government turn him over and take action against the group.

Just two days before hitting the city, the group of 10 terrorists who ravaged India's financial capital communicated with Yusuf Muzammil and four other Lashkar leaders via a satellite phone that they left behind on a fishing trawler they hijacked to get to Mumbai, a...