The Certificate Apostille , or the “Hague apostille ” is a certificate that authenticates the origin of a public document (e.g., a birth, marriage or death certificate, a judgment, an extract of a register or a notarial attestation). It confirms the authenticity of the signature and the authority of an official who signed the public document.Documents issued in India are certified with an apostille in accordance with the Hague Convention of 1961 are recognized in all Member States of the Hague Convention and do not require any other form of certification, such as consular legalization, which considerably reduces the costs and time required for the certification of documents. So far, more than 120 states have joined the Convention.The apostille is not sufficient for use in the countries that are not party to the Hague Convention. In this case, consular legalization applies to a public document