How to get foreign marriage certificate attested by authorities?

Hi, I need the marriage certificate to be stamped by the Ministry of Foreign Affairs. We got married on May 1st, and you may contact my wife at +91-8800788535. Please note that we require the civil marriage certificate, and since the marriage took place outside Mauritius, the certificate must be legalized or authenticated by the competent authority (such as the Ministry of Home, Foreign, or External Affairs) or bear the Apostille seal of the Hague Convention of 5 October 1961, depending on the requirements of the country where the marriage occurred.