New Delhi, Jan. 9 : The outgoing U. S Ambassador to India David C Mulford on Friday said that the perpetrators of the Mumbai terror attacks needed to be booked.

Speaking at his farewell ceremony here, Mulford said: "The US has been pressing as India has, for deeper understanding in Pakistan of the roots of this problem, learning more and more in the hope that we can bring the people who committed this heinous act to book."

Mulford said that the U. S was determined to work "non-stop" and "as long as it takes" to ensure that the perpetrators of the Mumbai terror attacks are brought to justice.

"It was an attack which appeared to have come from Pakistani territory. It appeared to have been managed from the Pakistani territories. It appeared to have been conducted by the Pakistani people who were trained and came from Pakistan," Mulford said.

He however, made it clear that the US did not want to make accusations against "certain parties" without evidence. (ANI)