The cut off rank differs every year for almost every colleges so it's very difficult to say that you will get a seat or not. The  Cut off depends on various factors like no. of students appeared for the test , difficulty of questions, no. of seats available etc. But according to previous year cut off(i.e. approximately 500 for BC-B category) I can say that you will get a seat in LLB course at Andhra University Visakhapatnam .