You have got a very good rank in PGCET so there are more chnaces you have to get the seat in AU in machine design. You can get your seat by passing through the counselling round. So it would be easy for you and you can get your seat confirmed within a short period of time as you have got a good number. The previous year's cutoff marks you can check at the website given below.

a.andhracolleges.com/colleges/college-profile.php?clgid=MT121