Sir, 

a) The birth certificate issued for my son is a computer generated document with unique codification. Also, the certificate reads that no signature is required as it is computer generated and digitally signed.

Generally schools are asking for attested copy of birth certificate. Seek yr reply what could be done in this case.

b) Also, I am having Adhaar card for my son wherein DOB / Name is printed.   Whether this can be given as a additional piece of information ? Seek yr reply.