Hello Aspirant,
There are 10% reservation for EWS category for admission into B. tech colleges. EWS reservation were implemented in 2019 and also in 2021 application form. You can choose EWS category to claim your EWS reservation. You can choose EWS as reservation for getting admission through AP EAMCET. You will definitely get some benefits such as fee reimbursement but you should have valid EWS certificate to get admission under EWS reservation.
Hope this helps!