Section 30E(8) in The Kerala General Sales Tax Act, 1963
(8)Any person aggrieved by an order under sub-section (6) may, within thirty days from the date of communication to him of such order, file an application for revision, in such manner and in such form, as may be prescribed and accompanied by a fee of rupees five hundred before the Deputy Commissioner and the Deputy Commissioner may pass such orders thereon as he thinks fit.Provided the Deputy Commissioner may admit an application for revision filed after the expiry of the said period, if he is satisfied that the applicant had sufficient cause for not filing the revision within the said period.