But, the Daily Mail reported Thursday, just one in a thousand of those granted visas was actually interviewed face to face.

The opposition Conservative Party's Shadow Home Secretary Chris Grayling said: 'There are very real concerns that the system is being abused by people who have no right to come to the UK.'

British Prime Minister Gordon Brown has said 75 percent of terrorist incidents in Britain have a Pakistani link - a claim denied by Pakistan.

Pakistan is classified as a 'high risk' country for visas by the British Home Office.