To stay in Germany for more than 90 days as a student, you are required to get a residence permit. You will need to prove to the visa officer that you have finances for one year. The amount would be €853 per month or €10,236 per annum (approx) kept in a Blocked Account. A residence permit issued to students is valid for a maximum of two years. It needs to be renewed if the duration of the course is longer than the stated two years.
A German Student Visa would cost you around €75. The processing time could take up to 25 days if all your documents are in order. A lot of times applicants are required to provide more/additional documents. For such cases, the processing time for the Germany Student Visa could go up to 12 weeks. Candidates looking to apply for a Residence Permit on arrival to Germany would have to pay up to €110. It can take a long time to be issued, which is anywhere between 8 to 12 weeks. Since this roughly translates to 3 months, international students are advised to apply as early as possible.
According to German visa rules, a student can work 180 days halftime or 90 days full time in an academic year. Presently, Germany is the only country where a student can do a part-time technical job in the related industry. Some universities also offer part-time jobs on campus called Hiwi. Students will have to contact the institute's student placement cell to get into this job.