The US Justice Department made Headley now serving a 35-year sentence in Chicago, "available by video link to a court in Mumbai to provide his testimony on his involvement in the attack," US State Department Spokesperson John Kirby told a news agency  yesterday.

"For our part, the United States has committed to doing all we can to assist the Government of India in pursuing every possible lead to bring to justice those responsible for that attack to the fullest extent permitted by US law," he said.

"But this was a decision and this was an event set up and established by the Justice Department," he said and the State department "wouldn't have gotten involved in that."Kirby noted that the US has "a very strong relationship with India on a lot of levels, and law enforcement's one of those."

"Obviously, we'll always look to try to improve our cooperation across all different aspects of the relationship," he said declining to prejudge the "strategic value" of Headley's testimony.

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