Kusuma,  you got good rank. As per your rank there is fair chance to get seat in AU. Rank also depend on category, presence of candidates in exam and reservation criteria, etc.

meanwhile , your rank is good, you need to take part in Counselling. During the counselling, you have to appear for verification of certificate. then you have to submit your choice of college in AU then check the seat allotment and pay the admission fee in order to take admission.

All the best