Section 30E(9) in The Kerala General Sales Tax Act, 1963
(9)Any person aggrieved by an order under sub-section (8) may within thirty days from the date of communication to him of such order, file a revision in such manner and in such form as may be prescribed and accompanied by a fee of rupees seven hundred before the Commissioner and the decision of the Commissioner shall be final.Provided that the 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 application within the said period.