Hi sir i am laxman gurung.... Originally from...

We would like to inform you that in general, any documents that will be submitted to governmental or non-governmental bodies, whether for Japan or any other country, must be certified by the Ministry of Foreign Affairs of the country from which the document was issued, and after that it will be certified by the embassy of the country to which the document will be presented.
  Therefore, you must know the documents that must be submitted to the employer that obtained it and provide these for attests for approval, such as study certificates