Iranian Supreme leader Ayatollah Ali Khamenei today called on Iranians to put aside their differences after the country's closely fought presidential election. Final results show hard-line Tehran Mayor Mahmoud Ahmadinejad won nearly 62 percent of votes in the run-off election on Friday. His challenger Akbar Hashemi Rafsanjani, a moderate conservative, won 35.9 percent. In his first comments since the poll, Khamenei, who wields ultimate power in Iran -- also urged Rafsanjani to remain in politics. Rafsanjani himself has made no public comments since Friday's election. Speaking to journalists today, Ahmadinejad said it was an honour for him to serve the people. He said: “I definitely feel very honoured that people have trusted me and have been kind to me. It's a great honour for me, but the honour of serving people is even greater , whether it is in the municipality, in the presidency or sweeping streets for this nation, it does not make any difference. " In comments broadcast over state radio earlier today, he said his aim is to make Iran an Islamic model for the world. The election results have still to be validated by the country's ultimate authority, the Guardian Council.