(1) The advance ruling pronounced by the Authority or the Appellate Authority under this Chapter shall be binding only--
             (a) on the applicant who had sought it in respect of any matter referred to in sub-section (2) of section 97 for advance ruling;
             (b) on the concerned officer or the jurisdictional officer in respect of the applicant.
         (2) The advance ruling referred to in sub-section (1) shall be binding unless the law, facts or circumstances supporting the original advance ruling have changed.