Voters had been called to cast ballots again on Friday in regions where candidates failed to gain enough votes in the March 1 election.
Conservative won the majority of the 45 remaining seats up for grabs in the vote held in 15 of Iran’s 31 provinces.
For the first time in the country, voting on Friday was a completely electronic process at eight of the 22 constituencies in Tehran and the cities of Tabriz in the northwest and Shiraz in the south, state TV said.
“Contrary to some predictions, all the candidates had a relatively acceptable and good number of votes,” Interior Minister Ahmad Vahidi told reporters in Tehran.
Candidates needed at least 20 percent of all valid votes in their constituency to be elected in the initial round.
The first round of the parliamentary election was held along with the Assembly of Experts vote on March 1, saw a turnout of 41 percent.
Twenty-five million Iranians out of 61 million eligible voters took part in the elections.
Back then, 245 candidates managed to pass the 20-percent threshold to win the ticket to the parliament.