He said he told Clinton that Saeed, believed by India to be the mastermind of the Mumbai carnage, is roaming free despite the evidence provided by New Delhi in six dossiers given to Islamabad.

He expressed Indian concern about increasing militant infiltration from Pakistan.

'The numbers (incursion attempts across the border) are now running to about 50-60 a month. A number of people that we apprehend are also very high so our assessment is that the level of infiltration has increased since the month of May 2009.

'Threat emanating from militants operating on Pakistani soil has not diminished. That is our official position. Since the threat level has not diminished. We continue to remain on guard and continue to be on vigil,' he said.