For BC ,you can use your mom,mama and uncle for evidence and has to be notarized. these 3 evidence is the strong proof your BC.But MC is the universal format as Nepalese govt.issue,i dont know about that.And other salutation...consult with lawyer i think they charge 300 to 500 just for filling your paper.

jai samvooo..

for format ( for example by your mom)
I,.(ur mom name),having been dully sworn ,state and depose under penalty and perjury that

1.i'm the bilogical mother
2.i'm currently reside ...ur mom full address
3.i got married to (ur father name).my son was born from our marrige.
I hereby confirm that my son ,your name, the son of ur mom and father name
undersigned affiant ,was born ur date of birth at full address Nepal.

Should you have any question please contact me.

your mom name
contact no#



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before me on this 6th day of may 2016