The Mumbai terrorist attack, being perceived as India's 9/11, could further complicate America's South Asia policy and the links of the attack go back to LeT, whose leaders have had patronage of the Pakistani establishment, the ISI in particular, a Congressional report has said.

"Fallout from the Mumbai terrorist attacks could further complicate US policy in South Asia," said the report prepared for the US lawmakers by the Congressional Research Service, a wing of the US Congress.