Korean immigration is administered by the Korea Immigration Service (KIS) within the Ministry of Justice. Visas are categorised by purpose into letter-coded series: A (diplomatic), C (short stay), D (long stay non-employment including study), E (employment), F (residence and family), G (other). For Pakistani applicants, the most common routes are D-2 Student, D-4 Language Training, D-10 Job Seeker, E-7 Specialised Activities and F-2 Long-Stay Residence.
The D-2 Student visa is issued to those admitted to a Korean university for a degree programme. International tuition is typically KRW 6–12 million per year, with KGSP (Global Korea Scholarship) — Korea's equivalent of Chevening or DAAD — covering tuition plus KRW 900,000/month stipend plus airfare for ~1,200 awardees worldwide each year. Korea has roughly 35–50 KGSP Pakistan slots annually. The D-4 Language Training visa is for one-year Korean language study at university-affiliated institutes; many Pakistani students enter via D-4 then progress to D-2 once their Korean reaches TOPIK level 3+.
The D-10 Job Seeker visa, issued for 6 months (extendable to 2 years total), is one of the most generous post-study windows in East Asia. It allows full work authorisation while searching. The transition target is the E-7 Specialised Activities visa, which has 86 designated occupations covering IT, engineering, finance, design, research, healthcare and education. After 1 year on E-7 with stable employment, eligible applicants apply for the F-2 Long-Stay Residence point system — needing 80+ points across age, education, income, Korean language (TOPIK), volunteer activity. F-5 permanent residence becomes available after 5 years of F-2.