Hello Ramu,

As you require panchayat secretary answer key, I will be attaching the link of the official website below over there you will get all the answer  key of 2019.

Link :- https://psc.ap.gov.in/(S(q3terd4d2me4iouhgvifrqdb))/HomePages/KeysToPapers.aspx

I hope the above information will be helpful for you.

All the best!