As most of us, my parents did not have their official birth certificate document. I obtained a validation type document from Ward Office (of Municipality). I am in the process of filing their GC. They don't have any other secondary suggested documents like Land Deeds, SLC Certificates etc. The only other option I see is an Signed Affidavit from their even older relatives.
But my parents are getting old and do not know how to get such document Notarized & Stamped. Anyone here knows, how I can reach out (from here in the US) to a Notary Public to get an Affidavit of Birth signed by my parents relatives?

BTW, this request is for outside Kathmandu Valley.