Legalisation or Authentication or Attestation is a process, which has to be completed in an Original Certificate or document or a copy of it (rare cases) for the use of it in your country. Attestation or authentication is the true and accurate representation of the facts or the authenticity of a certificate. Attestation means – The action of bearing the witness to affirm to be correct, true or genuine. Attestation Service is a consulting service that providing services to the public attestation on certificates. Attestation report is a report which expresses a conclusion about the reliability of a specified certificate.