Prabhu (BJP), Union Minister Y S Chowdary (TDP), T G Venkatesh (TDP), V Vijaysai Reddy (YSRCP) and his wife V Sunanda Reddy (YSRCP) have filed the nominations.
All nominations were found to be valid after scrutiny, a release from the office of the Chief Electoral Officer said.
The elections are being held to fill four vacancies. The ruling TDP-BJP can win three seats, while the opposition YSRCP can win one, according to their respective numbers in the Assembly.