//A Graduate visa gives you permission to stay in the UK for at least 2 years after successfully completing a course in the UK.
You must be in the UK when you apply.
Eligibility
You can apply for a Graduate visa if all of the following are true:
you’re in the UK
your current visa is a Student visa or Tier 4 (General) student visa
you studied a UK bachelor’s degree, postgraduate degree or other eligible course for a minimum period of time with your Student visa or Tier 4 (General) student visa
ion provider (such as your university or college) has told the Home Office you’ve successfully completed your course.//