Dear Sir,
As per RBI circular on export of goods and services the realization for goods exported should be realized within 270 days from export of goods. This can further be extended to 6 months by AD bank.
Now as you have exported the goods it will be captured by customs and reported to RBI in edpms system. This edpms report will be used by AD bank to follow up for overdue bills. In this case you have 2 options and as under,
1. Show the same goods as import from same party and inform AD bank to knock off the export bill against this import. (Import is captured in IDPMS and ad bank will knock of edpms against IDPMS).This is permitted by RBI in its circular in "netting of export / import against same person"
2. In case you are anticipating that another buyer will be there, then first seek extension for realization of export proceed from AD bank for further 6 months and find another buyer. In this case as the remittance is coming from person other than original buyer mentioned on shipping bill AD bank will ask for proof (As it is 3rd Party remittance). Hence as documentation take on "original buyers letter head his correspondence/reason for rejection" Then make another commercial invoice/enter into contract with another buyer and submit all these documents to AD bank for your bill regularization. This will clear your edpms outstanding. (**If "any" export bill is outstanding for more than 2 year then the exporter is caution listed by RBI. Exporter will not be given PCFC facility (will be given only for LC based order), Exporter will not be able to export on credit).
For MEIS : If exporter has not realized then please surrender mein.
For Drawback : It is generally given only after producing BRC, so you may have not received the said.
For GST : Reverse your ITC to the extent of goods exported but not realized. Also please clear all your edpms outstanding or else you will receive notices from GST department for reversal of ITC.
Rgds