All the candidates can check their response sheets at :
Step to check answer key :
Important Date :
Candidates can challenge the response sheet and answer key latest by August 16
About Andhra Pradesh Public Service Commission (APPSC) :
The Andhra Pradesh Public Service Commission is an organisation that works under the government of Andhra Pradesh to recruit staff for various posts in the various ministries and departments, and in subordinate offices. The commission also conducts examinations for the recruitment in various departments of the state.
Source: http://indiatoday.intoday.in/education/