The by-election in Andhra Pradesh's Nandyal town will be held on August 23, the Election Commission announced on Thursday.
The Nandyal Assembly constituency, a stronghold of the YSRCP, is witnessing a void after the death of its sitting legislator Bhuma Nagi Reddy, in March this year.
The counting of votes will be held on August 28. The last date of nomination is August 5, scrutiny of nomination will be done on August 7 and last date of withdrawal of candidates is August 9.
While the ruling TDP has named Bhuma Brahmananda Reddy as its candidate, the YSRCP has named Silpa Mohan Reddy as its nominee. Other parties, including the Congress are also planning to field candidates.
Nagi Reddy suffered a cardiac arrest at his house in Allagadda in Kurnool district and passed away in a hospital in Nandyal.
After winning on a YSRCP ticket along with his daughter Bhuma Akhila Priya, the MLA had defected to the TDP in February last year.
After Nagi Reddy's death, Akhila Priya, who is the MLA from Allagadda, was inducted into the state cabinet as the Tourism Minister.
The YSRCP has demanded that the TDP should 'leave the seat alone', and facilitate the unanimous election of their candidate, as Nagi Reddy was elected as an MLA from their party in 2014.
Meanwhile, by-elections to one vacant assembly seat in Delhi and two in Goa will also be held on August 23.
Apart from Delhi's Bawana constituency, polls will be held in Goa's Valopi and Panaji and Nandyal in Andhra Pradesh.
Valopi had fallen vacant due to resignation of Congress lawmaker Vishawajit Rane and Bawana seat due to resignation of Aam Aadmi Party legislator Ved Prakash. Both joined the Bharatiya Janata Party.
Panaji seat is likely to be contested by Goa Chief Minister Manohar Pannikar, who resigned as Defence Minister to again assume charge as the head of the government in the state after the assembly elections had thrown a fractured verdict.
The Election Commission said that electronic voting machines and Voter Verifiable Paper Audit Trail (VVPATs) will be used in the bye-elections in all the polling stations.