Eventually all but one of the gunmen were killed. The survivor, Ajmal Kasab, told a special Indian court he and the others were tutored by a man named Abu Jindal on how to speak with a Hindi accent to avoid detection in India and confuse police about their origins.
Police are now looking for a second man who is heard on the tape from the Karachi control room. That man, who police believe is Lashkar-e-Taiba terror group commander Muzammil Butt, based on testimony from other suspects, is heard cutting the attackers off as they exclaimed about the size of the television screens and the luxury fittings in the five-star hotels.
At one point, he is heard saying: "How hard is it to throw a grenade? Just pull the pin and throw it."
Investigators had been looking for Ansari for years after he was implicated by other suspects in the Mumbai attacks, but they never knew his exact role in the attack, said officials close to the investigation.
India learned Ansari was living in Saudi Arabia on a Pakistani passport, officials said.
Image: In this Nov. 26, 2008 file photo, lone 26/11 survivor (among the militants) Ajmal Kasab walks through the Chatrapathi Sivaji Terminal railway station in Mumbai.