India, since 2005, is a member of the Hague Convention of October 5, 1961 that abolished the requirement of legalization of foreign public documents. Essentially, apostille is an internationalattestation that is acceptable in about 92 countries, and most of the western world recognises Apostille. Apostille stamp is a square shaped computer-generated sticker stamp, pasted on reverse of the document by the Ministry of External Affairs, Government of India. This is a unique computer-generated stamp having a unique identification number, through which any member country of the Hague convention can check its authenticity online. Under normal circumstances, once the document is apostilled, it does not require to be attested further from the concerned embassy.
If a document is apostilled, it does not require to be attested.