AEEE

The fee will be around 2.5 Lacs per annum including hostel and mess fee. You may refer to the link below for the exact fee details:
https://www.amrita.edu/admissions/btech-2017/fee-structure

Do you have any reservation. If had there's little chances. If not, no chance to get a seat there.

It depends upon your score.

Yup, you can definitely get a seat in EEE or EIE.

Hi,
There is a chance for you. Keep your fingers crossed, but the chance of getting scholarship keeps on changing, based on the number of candidates opted at a particular location. As per note from the campus:
Tuition fee waiver ranging from 90% to 25 % is awarded to the students, based on their rank at the time of admission counselling. Scholarship seats are earmarked in each branch in each campus. A total of 300+ candidates are eligible for scholarship at the time of admission and continuation of scholarship in subsequent years would require meeting the minimum required CGPA during subsequent years of study.

With this AEEE rank of 7000+ you can get ECE department with a minimal chance of not getting it. It is better if you get it in Coimbatore campus rather than Bangalore campus of Amrita.