Export of Services with payment of tax

https://www.caclubindia.com/share_files/gst-refund-documents-requirement-75287.asp

File RFD 01 "Export of Services with Payment of Tax "
Your GSTR 1 & 3B need to filed for all the period for which Refund is intended to be claim.

Document to be uploaded :
BRC/FIRC/Any other documen indicating the receipt of sale proceeds.

Copy of GSTR 2A for relevant period
Self certified copy of Invoice entered in Annexure -A whose details are not found GSTR 2A

Self-declaration regarding non-prosecution Under Subrule (1) of rule 91