One moment
Korea splits its student visas in a way that matters more than most students realise. A D-2 is for a degree at a university; a D-4 is for a language course or a non-degree programme, and the two carry different conditions and different work rights. The university verifies your finances before immigration does, because Korean law requires it to, so the institution is the first real check on your application.
Korea does not publish one national threshold. Universities are required to verify that an applicant can cover the full cost of the first year and to confirm funding for subsequent years, and they translate that into their own requirement. Institutions in the Seoul metropolitan area commonly ask for the equivalent of around twenty million won, and others less.
A bank balance certificate is normally required in your own name and dated within about a month of the application, with statements from the preceding three months. Where the source of the money is unclear or it is borrowed, the review becomes markedly stricter.
Source: Korean immigration requires the university to verify funds; each university publishes its own amount. Check the current figure on the government's own site before you rely on it; it changes, and a page is not an authority.
Dated backwards from the intake, because that is the only fixed point. The step people leave too late is marked.
A D-2 is a degree at a university. A D-4 is a language or non-degree course. Students routinely apply for one while describing the other, and the conditions, the work rights and the path afterwards all differ. Get the category right before anything else.
Korean universities generally want the certificate in the applicant's own name, dated recently. A parent's account, or a figure assembled and certified the week before, is where Nepali files most often stall, and it stalls at the university rather than at immigration.
The study plan is read, and it is read for whether Korea specifically makes sense for you rather than as a general statement about wanting to study abroad. A plan that would read identically with the country name changed is the pattern that gets doubted.
Academic and financial documents from Nepal usually need apostille or consular legalisation and certified translation. This takes weeks, is commonly left until after the offer, and is the single most avoidable delay on a Korean application.