Hi,
The Amrithapuri campus is the best of other campuses of the Amrita University. It may vary in others perspective.
As you are from Telangana, you are none-regional. So, you have fewer chances of getting the specified branches in any of the campuses of Amrita University. As the cut off for open category ends at nearly 5000 to 6000 ranks, you have fewer chances.
This is according to the cut off ranks of 2017.
The trends may vary. Still, you can give a try. If seats are left, then you may get admission into one of the colleges.
You can go through the trends of cut off by the link: http://engineering.careers360.com/articles/aeee-cutoff
Don't get disheartened, try for it as much as you can if you are more passionate about joining the university.
Let me know if you still have any query.