Iran's President Mahmoud Ahmadinejad said in Tehran Wednesday that the upcoming presidential elections day will be a "bigger no" to his rivals, the official IRNA news agency reported.

Iranian President and candidate for the upcoming presidential election Mahmoud Ahmadinejad waves to supporters before addressing them in front of the Sharif University in Tehran June 10, 2009.[Xinhua]

"With God's grace, the nation will say a bigger no to the enemies (some rivals), thus throwing them to the abyss of history," Ahmadinejad was quoted as saying.

Addressing thousands of his supporters in Tehran's Azadi streetin front of Sahrif Technology university, he criticized his elections rivals for vilifying and leveling accusations against him.

"Their problem and target is not Ahmadinejad, rather, they want to take revenge on the nation because Iranian nation's sin was their new choice in the former (presidential) elections," he said.

Supporters of Iranian President Mahmoud Ahmadinejad attend his last presidential campaign in Tehran, capital of Iran, on June, 10, 2009, prior to the upcoming 10th presidential election slated for Friday. Four candidates of the election -- incumbent President Mahmoud Ahmadinejad, former Prime Minister Mir Hossein Mousavi, former Parliament Speaker Mehdi Karroubi and former Revolutionary Guards chief Mohsen Rezaei -- are racing for the presidency.[Zhang Ning/Xinhua]

In the recent successive TV debates, three Ahmadinejad's rivals criticized his economic, domestic and foreign policies which raised serious controversy in the country's political scene just few days ahead of the elections.

The candidates for immanent presidential elections, Iran's reformist ex-parliament speaker Mehdi Karroubi, the former prime minister reformist candidate Mir-Hossein Mousavi, and former Revolutionary Guards Chief Mohsen Rezaei, a moderate conservative, are vying with the incumbent hard-liner president for the next presidency.

Mousavi, with his bitter criticisms, has largely appeared to be Ahmadinejad's main challenger for the country's upcoming presidential competitions slated for June 12.