The cut off marks are still not announced by the university yet ,so before that we can't be absolutely sure about this years 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 son has scored a good rank so he'll be able to get admission in the university and as long as the branch and campus is concerned I think he'll get ECE/Civil in VIZAG campus and CSE in hydrabad campus, but you need to wait till the results are out. 

Good Luck!!