However she lost her seat in Parliament at the 1991 general election when she was defeated by Ling How Doong of the Singapore Democratic Party (SDP), and has not been active in politics since then.
She was then awarded a Colombo Plan Scholarship to study biochemistry at the University of Adelaide, where she graduated with First Class Honours in 1964.
[1] She then worked for the Ministry of Health and the Singapore Institute of Standards and Research, before establishing a medical laboratory practice.
[5] After her election defeat, Seet became a Senior Visiting Fellow in the National University of Singapore Institute of South-East Asian Studies.
She also went on to co-found the Dover Park Hospice, and served on the boards of several companies, charities and public organisations.