Small question: my son (17yo) just got a new passport from our embassy. How long does he have to register it at immigration? He is on student visa, valid till May. Does he need to go there himself? Or can I do it for him?
TLDR : Answer Summary
When a person with a student visa receives a new passport, they must register it at the immigration office where their visa extension was issued. They need to bring both the old and new passports to the office, and they are generally required to go in person to complete this process.