London, Aug 20 - Pakistan President Asif Ali Zardari and other members of the Bhutto family have been 'profoundly grieved' by a new book that claims Benazir Bhutto had a college affair with former international cricketer Imran Khan, Pakistan high commissioner to Britain said Thursday.

Wajid Shamsul Hasan, the envoy who is a close friend of the Bhutto family and was a confidant of the slain former Pakistani prime minister, said the book by Christopher Sandford - a biography of Imran Khan - does not give any evidence linking Benazir Bhutto and Khan during their Oxford University days.

'This baseless, scandalous story has pained me personally. Even more so, it has grieved profoundly the president, the Bhutto children and the family,' Hasan told IANS as he arrived in London from Islamabad to face a welter of media queries.

'The author does not give any concrete evidence on which his insinuation rests.

'Whatever he has written is based on his wild imagination and interpretation of 'giggles and blushing' of girls when Imran is around and not the martyred Benazir Bhutto,' said a furious Hasan, the local guardian to Bhutto's young Oxford-going son Bilawal.

In a separate media statement, Hasan, who had known Bhutto for nearly 35 years before her assassination in December 2007, said: 'The former prime minister was like a younger sister to me and throughout my long association with her, no one could point a finger at her flawless character.'

'She never had any affair with anyone and her marriage with President Asif Ali Zardari was arranged by the two families in keeping with the Pakistani traditions.