New Democracy leader Kyriakos Mitsotakis called for a stable government for the next four years from the polling station in Kifissia, where he voted.
"Citizens and democracy are the focus today, it is a day of joy and responsibility. We are voting for the second time in just a few weeks so the country can have a stable and efficient government with a four-year horizon," he said.
New Democracy, SYRIZA and PASOK closed the election race on Friday with different goals in view of Sunday's ballot.
For conservative ND, the main goal is to secure a comfortable outright majority in the region of 158 seats. It believes that the votes of young people and voters who live in areas other than their constituencies are key to achieving this.
The long pre-election period and the clear result of the May 21 ballot may have created a sense that Sunday's vote is something of a formality. This is far from the case.
In fact, this election is more important than the last one because it will determine whether the country will have a government for the next four years and how it will be governed.