Section 59A(5) in The Kerala General Sales Tax Act, 1963
(5)Every order issued by the Commissioner of Commercial Taxes under sub-section (1) shall, subject to the provisions of section 40, be final and binding on the applicant, and all authorities subordinate to the Commissioner including an Appellate Assistant Commissioner.Provided that the decision of the Commissioner of Commercial Taxes shall not affect the liabilities of any person under this Act as respects any sale or purchase effected prior to such determination.