You can usually avail short-term visa for 3 months, long-term visa for 9-12 months and residence permit for stay beyond one year as a student. The duration of the visa is usually dependent on the duration of your course and may vary according to the destination country. For example, you will get a three to six months student visa in Germany. When you get admitted to the preparatory college or higher educational institute, you can apply for a resident permit from the foreigners’ office within these three months. If you need more time, you can extend the student visa fora certain time with supporting documents in the local visa office.
The documents required for student visa application are a valid passport, proof of admission, proof of qualification, proof of financial resources, proof of health insurance, proof of language proficiency and two to three passport photos.However, this list of documents is inclusive and not exhaustive. You should check the website of the country consulate for all details.