I have a friend from Doon University and according to him, it is quite easy to get a seat at Doon University in German studies.
Previous year papers are available on the university’s web portal and are easily accessible, I suggest you go through them once. The university also releases sample question papers to provide an idea about the question paper pattern. There is a possibility of some of the questions getting repeated on the exam day, so go through the questions thoroughly.
Having command over grammar and a little bit of knowledge about the German language will help you in cracking the entrance.