It will be People's Action Party (PAP) candidate Desmond Choo, 34, against Workers' Party (WP) candidate Png Eng Huat, 50 in the Hougang by-elections.
Both Mr Choo and Mr Png were successful in filing their papers at the Nomination Centre at Serangoon Junior College.
Independent candidate Zeng Guoyan, 59, turned up this morning to file his nomination papers, however he was disqualified as he has a public offence on police record.
Dr Poh Lee Guan, 50, was the fourth person to be issued a political-donation certificate but did not turn up today.
SINGAPORE - Today is Nomination Day for Hougang's by-election. Polling Day for the Hougang by-election to fill former Workers' Party (WP) MP Yaw Shin Leong's seat will be held on May 26.
The nomination centre is Serangoon Junior College (SRJC). Potential candidates will today hand over their nomination forms and political donation certificates to the Returning Officer from 11am to noon.
Candidates must file their forms in person, and be accompanied by a proposer, a seconder and at least four assentors, who must be registered voters in Hougang.
Candidates must pay an election deposit of $13,500 by cash, bank draft or cashier's order.
The forms will be placed on a board outside the hall. Candidates can raise objections over others' nominations in writing, between 11am and 12.30pm.
All errors must be corrected before noon.
Candidates and subscribers can enter the nomination hall from 10.30 onwards.
After nomination closes at noon, the Returning Officer will announce the results. Candidates can then speak for up to one minute.
Stay tuned to AsiaOne as our webknowledgist Karen Lim reports live from SRJC:
12.39: It is Mr Ng's turn to speak to the crowd. Speaking in Mandarin, Hokkien and English he urged WP supporters to vote for him and the party.
"Please send me to parliament so WP can continue to be your voice in Parliament", he said.
12.38: Mr Choo addresses the boisterous crowd. Speaking to PAP supporters he said: "You guys have been amazinng! Thank you for your support".
12.35: Hougang's by-election will be a straight fight between PAP's Desmond Choo and WP's Mr Png Eng Huat.
Returning officer Yam Ah Mee confirmed this at SRJC today after nominations closed at noon.
Candidates are expected to begin their campaigning as early as this afternoon. Mr Choo told reporters that he will start after having a short lunch break.
Polling day will be held on Saturday May 26, 2012.
Noon: Submission of nominations closes. WP's Dr Poh Lee Guan does not turn up to file his nominations.
At noon, only two names were seen on the notice board: WP's Mr Png Eng Huat, and PAP's Mr Desmond Choo,
Mr Zeng Guoyan failed in his bid to stand as an independent after his nomination was rejected.
11.37am: Independent Zeng Guoyan has been disqualified as he has a public offence on police record. In April 2008 he uttered abusive words to police officers when they entered his shophouse.
The returning officer told Mr Zeng that is not allowed to contest in the by-election.
11.30am: Still no sign of WP veteran member Dr Poh Lee Guan.
11am - Independent candidate Zeng Guoyan arrives on a motorbike. Worker's Party Hougang candidate Png Eng Huat and party secretary-general Low Thia Khiang walk over to Block 704 just opposite Serangoon Junior College, where the nomination hall is situated.
10.45am: Speaking to AsiaOne, Desmond Choo of the People's Action Party (PAP) says he is very excited and thankful for his supporters.
He says it has been smooth so far and is geared up for the elections. Wishing his opponents the best , he added that it is going to be a long and tiring campaign.
10.30am: Desmond Choo arrives and enters the school compound.
10.20am: Residents clap and cheer as they welcome Workers' Party supporters who arrive with flags.
10.15am: At least a hundred people have gathered opposite SRJC.