Not possible to cancel all coal block allocations:
Union Rural Development Minister Jairam Ramesh today said it was not possible to cancel all the coal block allocations but asserted that no one, even if a minister or a senior official, would be spared if found involved in the coal scam.
``Some more coal blocks would be de-allocated,'' Coal Minister Sriprakash Jaiswal told reporters after attending a meeting on infrastructure projects convened by Finance Minister P Chidambaram.