Chor served two separate stints in
Parliament. He was first elected in 1959 as the member of the
Legislative Assembly of Singapore for the
Jurong Single Member Constituency but was defeated in 1963. He also served as Parliamentary Secretary for the
National Development from 1961 to 1963. Between 1963 and 1966, he served as Political Secretary for Health. Chor was
elected as a member of the
Parliament of Singapore for
Bukit Timah Single Member Constituency serving from 1966 to 1984. He also served as Parliamentary Secretary for
Health from 1966 to 1972 and Senior Parliamentary Secretary for
Environment for 1972 to 1982. Chor was the Chairman of People's Action Party Bukit Timah Branch in 1979. ==Personal life==