(1) Every shareholder, having a claim in relation to any share acquired by this Act, shall prefer such claim before the Commissioner within thirty days from the specified date:
     Provided that if the Commissioner is satisfied that the claimant was prevented by sufficient cause from preferring theclaim within the period of thirty days, he may entertain the claim within a further period of thirty days and not thereafter.
     (2) Every shareholder of a preference share shall have a preferential claim with regard to the amount paid by the Central Government to the Commissioner.