Prime Minister Manmohan Singh today appeared to raise doubts over the veracity of diplomatic correspondence cited by the Wikileaks and insisted that he had "not authorised anybody" to purchase votes nor was he involved in any such "transactions".

"I think, people who are affected by them (Wikileaks expose), they have already commented on them, casting serious doubts about the veracity of allegations made in these diplomatic despatches," Singh said here while commenting on the Wikileaks expose which alleged that MPs were purchased during the 2008 trust vote.

"I have no knowledge of any such purchases and I am absolutely categorical, I have not authorised anyone to purchase any votes. I am not aware of any acts of purchase of votes," he said while replying to questions at the India Today Summit.

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