The cut off marks are still not announced by the university yet ,so before that we can't be absolutely sure about this year's cut off as they depend upon various factors like number of applicants fill the form, number of applicants finally appeared in the exam, number of questions asked in the exam, difficulty level of the exam, performance of the candidate, previous year's cut offs trends availability of seats in the institution. Though you have scored a very good rank so you'll be able to get admission in vishakhapatnam branch in the first round of councelling itself as the cut offs for mechanical engineering aren't usually that high.

Good Luck!!