The term of Reddy, who passed away on May 9, was scheduled to end on June 21, 2016.
Chief Electoral Officer of Andhra Pradesh Bhanwar Lal said that after the bifurcation of the undivided Andhra Pradesh, the seat has been allocated to Andhra Pradesh (new) as per a notification issued by the Rajya Sabha Secretariat.
Notification would be issued on June 16 and the last date for filing nominations is June 23.
Counting would be taken up at 5 PM on July 3, he said.