Dear student,

There is only bit chance that you will get any seat here just because of the state quota, they prefer their home state students other than any one, you've scored nice but it would be more beneficial if you were from Tamil Nadu. For the score of 115, your rank should be around 7k and to get lowest seat in Amrita your rank should be around 5k atleast in open state.

If you really interested in Amrita then you can go with the admission through management quota, they might ask you for the donation to get any seat here but donation fee is only high in CSE like branches only.

Best Of Luck!!!