I had applied for a green card for my father, and got an RFE concerning his birth certificate. Since he is an Indian who was born in what is now Pakistan, we have no access to government records (which in all probability do not exist). So, we provided an affidavit from his older brother along with secondary evidence of birth date/parentage. We have now got a second RFE saying we must procure birth certificate or non-availability certificate. Any idea of what we can do? If anyone has had a similar issue that got resolved, let me know.