For inverted duty structure refund refund on input services and capital goods not allowed. Although they are part of details they are not part of calculations. Details has to be filled in relevant formats.
1.Copy of GSTR 2A of relevant period. 2. Statement of Invoices (Annexure B) 3. Shipping bill in case of export made through non-EDI ports
Declaration to be filled online : Declaration under 2nd & 3rd proviso to section 54(3) Undertaking in relation to section 16(2)(c) Statement 3 under rule 89(2)(b)
For more details can refer Circular 125/44/2019 GST