I have clearly mentioned FORM GSTR-9 and not FORM GSTR-9A. GSTR-9A is filed by Composition Scheme Dealers.
TABLE 5 of PART 2 of FORM GSTR-9 deals with "Details of Outward supplies MADE during the financial year on which tax is not payable". And EXEMPTED SUPPLY reporting needs to be done in column (D) of Table 5.