Iranian President Mahmoud Ahmadinejad vowed on Thursday that Iranian people would never give in to bullies of the western countries over its nuclear program one day after Iran's nuclear file was sent to the U.N. Security Council.

"The Iranian nation will never give in to bullies, and all of them are announcing that nuclear energy is an undeniable right," Ahmadinejad was quoted by the official IRNA news agency as saying in the western province of Lorestan.

Ahmadinejad said the time of bullying over the Iranian nuclear issue had come to an end, and Iran would never be forced to do anything.

On Wednesday, the International Atomic Energy Agency (IAEA) board of governors concluded a key seasonal meeting in Vienna.

Although discrepancies still remained within the IAEA board on the next move on Iran, IAEA chief Mohamed ElBaradei's report on the Iranian nuclear issue was handed over to the U.N. Security Council soon after the meeting.

ElBaradei stressed that the involvement of the Security Council was "just a new phase of diplomacy, not the end of it."

Iran has said that it will continue talks with the international community to find a solution to its nuclear dispute despite the negative situation.