Lim joined a six-member SDA team contesting in Pasir Ris–Punggol GRC during the 2006 general election against a PAP team led by Defence Minister Teo Chee Hean. At the time, Lim was assistant secretary-general of the SDA. The SDA team lost to the PAP team with 31.3% of the vote against the PAP team's 68.7%.
