Hello there,

Yes, A Rank below 1000 is acceptable. So, 765 is a good rank for a mechanical seat. But,the factor which also matters is your category. You have not mentioned anything about your reservation. So If you have any kind of reservation it can make a huge difference.

Check this link to know more about colleges accepting AP PGCET score :

https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-india-accepting-ap-pgecet

Hope this helps..