Why do I have to get my documents Attested?
Attestation of a document is typically required where there is a need to present an official document or certificate to a country other than the one that issued the document.
The purpose of this process is so that your documents will be recognised and accepted overseas. This would include applying for a Visa, Drivers Licence, Passport, Medical Registration etc outside of your home country.
This process is not usually needed if you are applying to an overseas British authority such as a British embassy or High Commission, for example when applying for a replacement passport to your own embassy. If in doubt you should check the requirements with whoever you need to present the document to.