The Qualifications and Curriculum Authority (QCA) will meet to discuss allegations that Mr Blunkett asked an official to check whether his son was affected by an exam marking fiasco in 1998 while he was Secretary of State for Education.
Mr Blunkett, who is now Work and Pensions Secretary, denies the charges, which surfaced in the New Statesman magazine.
In the summer of 1998 Mr Blunkett's son received his A-level results just as it was revealed that a computer error at an exam board may have seen many youngsters awarded the wrong grades.
It has been claimed that an official acting on behalf of Mr Blunkett had called the QCA to check whether his son had been affected.
The Department for Education and Skills declined to comment.
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