He defeated candidates from the Workers' Party and the United National Front by winning 71.5% of the votes.
[3] In 1976, Chin ran for re-election in the same constituency, this time competing against Lim Kang Chew of the Workers' Party.
[4] [2] In 1980, Chin faced United Front's Sim Peng Kim and won 84.6% of the votes.
The PAP team consisted of Chin, Wan Hussin bin Zoohri, and future Foreign Minister George Yeo.
They faced a challenge from the SDP team of Mohamed Jufrie, Neo Choon Aik, and Ashleigh Seow.