Presidential elections were held in the Maldives in September 1973. The election took the form of a referendum on the candidacy of incumbent President Ibrahim Nasir, who was re-elected.
Maldivian presidential election, 1973 Wikipedia
Nasir had originally been elected for a four-year term in 1968. However, in 1972 a constitutional amendment was passed by the Majlis to extend the presidential term to five years.
The constitution required that the President be selected by the Majlis and then their candidacy confirmed through a referendum.