The US has contended that the dossier given by India to Pakistan on the Mumbai attacks was "credible" but suggested that New Delhi should allow time to Islamabad to act on it.

US Ambassador to India David C Mulford said the dossier contains extensive inputs from the Federal Bureau of Investigation (FBI).

"From what I have seen it is a very credible material. The FBI is cooperating in Mumbai...It is information which tells and gives a very accurate account of what has happened," he told Karan Thapar's programme 'Devil's Advocate'.

Commenting on the Indo-US cooperation in this area, he said the dossier prepared by India extensively used material provided by the FBI. "As far as I see, it (FBI material) was used extensively because the material was same."

Underlining the credible aspect of the dossier, he said, "As far as the FBI is concerned, they do not deal with non-credible material. It is a truly professional organisation supported by absolutely high-tech techniques."

On the Mumbai attacks, Mulford said "there were handlers who were in touch with these people on the ground. It is a serious problem. This act of terrorism came from Pakistan".

When referred to Prime Minister Manmohan Singh's view that "official agencies" of Pakistan could have been involved in the terror strikes, the Ambassador said "I think one needs to be very very careful about making those kinds of allegations unless you have very concrete evidence to that degree of specificity."

... contd.