Hey Sai! EWS criteria is applicable in almost all the examination. Economically Weaker Section in India is a subcategory of people belonging to the General Category having an annual family income less than ₹8 lakhs and who do not belong to any reserved category such as SC/ST/OBC. Definitely EWS certificate is applicable in AP EAMCET counselling and it provides reservations which differ University to university. Hope this may help you.