Who served as the chief minister of Andhra Pradesh for the longest duration?

Q. Who served as the chief minister of Andhra Pradesh for the longest duration?
Answer: N. Chandrababu Naidu (Telugu Desam Party)
Notes: N. Chandrababu Naidu is known to have the longest tenure as chief minister of Andhra Pradesh, with a duration exceeding thirteen years, while N. Bhaskara Rao had the shortest term lasting only 31 days.