I am an Indian married to a US citizen and have applied for a green card through marriage. I have not received any RFEs so far and got my interview letter which says I must take my original birth certificate to the interview. I was born in Chennai, India and apparently the Chennai Corporation will only issue computer generated electronic birth certificates. The birth certificate says it doesn't need a signature/seal and that the authenticity can be verified at the link (http://www.chennaicorporation.gov.in/online-civic-services/birthCertificate.do?do=show). Will USCIS accept the computer generated birth certificate? If not, what is my alternative? Will affidavits from my mother and a relative suffice? My lawyer insists I should get the original birth certificate, but looks like I can't.