The Seri Setia by-election will see a straight fight between Pakatan Harapan's PKR and its former ally PAS.
Harapan candidate Halimey Abu Bakar will face PAS' Halimah Ali in the Selangor state seat poll.
The nominations today at the Petaling Jaya Civics Centre went smoothly with the presence of supporters from both parties.
The seat is one of two Selangor seats in the upcoming twin by-elections.
PAS did not field any candidate in the Balakong contest, where MCA is facing Harapan in a straight fight.
This is similar to PAS staying out of the August 4 poll in Sungai Kandis, where Umno and an Independent took on PKR, where the incumbent party subsequently won.
Seri Setia's 52,650 voters have to cast their ballot again, following the death of incumbent Shaharuddin Badaruddin on August 2 from illness.
Shaharuddin won the seat in the May 9 general election with a 19,372 majority.
Developing familiarity with new logo
Meanwhile, Harapan candidate Halimey said that should he win, he would take into account issues faced by those living in low-cost housing, such as issues in the People's Housing Project (PPR) at Lembah Subang and Desa Menteri.
When asked about progress made by the Selangor government on the 100-day promises, he replied: “There is no problem. We focus on Selangor.”
Harapan president Dr Wan Azizah Wan Ismail, who was present outside the nomination centre to support Halimey, expressed her confidence in him.
She said she hoped for a much larger voter turnout than in Sungai Kandis, which was a dismal 49.4 percent of total voters.
The deputy prime minister also pointed out that time was needed to overcome voters’ unfamiliarity with the Harapan logo, which was being used for the first time in any polls.
DAP's candidate in Balakong by-election, which is being held concurrently with Seri Setia, is also campaigning under the Harapan logo.
"We are using a new logo, Harapan's logo. This needs time as sometimes, we don't love what we are not familiar with as we haven't gotten to know it...so, it will take time but I believe the voters will come to accept it,” said Wan Azizah.
On PAS' side, Halimah said she was there to keep the Harapan-dominated state legislative assembly accountable.
"No matter how efficient a government is, there needs to be check and balance. That is what I’m here for.
"There is not such thing as a stronghold. Umno, for 63 years, we said it was a stronghold. Harapan needs to pay attention so it doesn't just make sweet promises," she said.