May 27, 2011, 07.50am IST
CHICAGO: The arrest of Pakistani terrorist Ajmal Amir Kasab on the night of November 26, 2008 was one of the major irritants for Lashkar-e-Taiba (LeT) mastermind Sajid Mir, who considered it one of the mistakes made by the 26/11 attackers, who killed 166 people and injured more than 300 in Mumbai.

While the LeT attempted to make foolproof plans to attack Mumbai, the 10 men involved in the carnage made a number of mistakes, thus leaving crucial clues behind for Indian intelligence agencies, according to court documents unsealed in the United States.

The LeT had sent the 10 men to fight to the death and Sajid wasn't pleased when he heard that Kasab had been taken alive by the Mumbai police. Sajid told terror accused David Headley that he wanted to swap Kasab for hostages at Chabad House, Colaba. The documents said, "Sajid also told Headley that one of the attackers had been arrested and that he had tried to free the attacker by instructing an attacker at the Chabad House to contact the Israeli embassy and attempt to trade hostages for the attacker."