The by-elections were held to renew PAP's ranks by inviting five of its Members of Parliament to resign a and make way for new blood. They did so a day before the writ was issued. With WP licking its "wounds" after a disastrous showing in the 1968 General Election, only UNF, a new alliance consolidating remnants of the defunct SA, fielded candidates. PAP won all the seats that were up for grabs.

Writ of election: 1 April 1970 [Wed]
Nomination day: 8 April 1970 [Wed]
Polling day: 18 April 1970 [Sat]
Members swearing-in: 8 May 1970 [Fri] & 21 May 1970 [Thu]

Electorate: 69,125
Walkover voters: 43,815 (63.4%)
Eligible voters: 25,310 (36.6%)
Voter turnout: 21,550 (85.1%)

Election deposit: $500

Delta Havelock Kampong Kapor Ulu Pandan Whampoa

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General Election 1968
General Election 1972
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