In the US, the Pakistani-American David Coleman Headley said that terror outfit Lashkar-e-Taiba(LeT) blamed for the Mumbai carnage got assistance from Pakistan's Intelligence agency ISI and both coordinated with each other. The testimony by Headley came as the trial of Mumbai attack co-accused and his longtime friend Tahawwur Hussain Rana, a Canadian of Pakistani origin, opened in the US today at Chicago. Headley is also a co accused and had pleaded guilty to laying the groundwork for the 2008 attack. In its opening arguments in the Mumbai attack trial in the US, the prosecution said ISI had links with Rana and Headley. Rana has not pleaded guilty. Headley said ISI provided help to Pakistan-based terror group LeT. He said he first started training in Pakistan more than a decade ago with the LeT. Headley added that LeT boss Hafiz Saeed, the mastermind behind the 26/11Mumbai attack motivated him for carrying out a 'jihad'. He also claimed that two years before terrorists struck Mumbai, he began laying the groundwork for the attack which was financed by 'Major' Iqbal.