Apostille vs. Embassy legalisation for Nepal
Two arrangements sit behind every document that crosses a border. Under the treaty arrangement, one standard certificate is enough and the receiving country asks for nothing further. Under the older arrangement, officials of that country inspect the file themselves before it counts for anything. Nepal works to the second, so an apostille for Nepal is not the ending here. Neither arrangement, though, puts anybody in the chain who reads your document for accuracy.
Nepal's Hague status & what it means
Nepal has not joined the Hague Apostille Convention. That is a position held by the country, not a judgement about your particular paper, and it lands the same way on a degree, a company file and a birth record. It also means an extra pair of hands, an extra charge and an extra wait, all of which multiply the price of a detail that was already wrong before the job began.
Corrections belong at the source
Certification is a chain of signatures. The British office confirms the signature and seal on the document in front of it; the consular stage then looks at what the British office did. At no point does anyone compare the name on the sheet with the name in your passport, or an event date with the date you remember. The text simply rides along.
So the reading has to be yours, and it has to come first. Where the paper is a civil record, Plymouth Register Office at Derriford Park issues a fresh certified copy straight from the register, which is both the version that should travel and the version worth studying closely. A discrepancy caught at that point costs one reprint. The same discrepancy caught in Nepal costs the entire route a second time.
Cost & timing for this route
The British part of the bill is fixed and published: £45 for each document by post at the Legalisation Office, or £40 for each on the next-day route open to registered businesses. The consular charge belongs to the receiving side and is not set out on this page. Both are counted per document, so a sheet withdrawn and replaced is not an adjustment; it is a second job at full price.
Destination-specific requirements
Nepal expects consular legalisation, arranged through its officials in Britain once the British certification is in place. What reaches that desk should be a document you have already read twice: right name, right dates, right issuing body, and a clean certified copy rather than a photocopy run off at home. The route is generous about how the paper looks and merciless about how long a mistake takes to undo.