That is the most common question students asked who want to study in Germany or in German Universities. Here will explain you what is the meaning and purpose of this blocked account.
Blocked account means, you required to open a bank account in any German Bank and need to deposit 8,640 Euro in account. Bank will put some restriction on this account according to German laws for foreign students. Due to these restrictions this account is called blocked account.
This account is like a security deposit for your living expenses in Germany. Because if you study free or with fee in Germany, in both ways you need money to survive in Germany like for food, rent and shopping etc. So, this money in blocked account will help you to survive in Germany with studies. According to the restrictions you can only withdraw 720 Euro per month from your blocked bank account.
This money basically a proof that you can financially support yourself during studying in Germany. This money is for your living expenses like rent, food, health insurance, books, stationary, internet, semester ticket and phone.
Now you will definitely ask why 720 Euro per month?
The answer of this question is in Germany the expected monthly expense for a foreign student are almost 720 Euro per month. Which include rent, food and other stuff. If you calculate expenses of above mentioned items like rent, food, health insurance, books, stationary, internet, semester ticket and phone then total amount which you need is more than 700 Euros.
German authorities calculate this figure roughly or estimated for one year. But in reality you can survive two years in Germany with this money. Because living expenses in Germany are not so high.
Normally you can open blocked account in any German Bank. But now days only Deutsche Bank offers blocked account to foreign students.