Iran has had the plan to install 60,000 centrifuges of the first generation in central city of Natanz establishments which could produce nuclear fuel of one power plant for one year, but if they are replaced by the new generation of centrifuges, they will be able to produce fuel for six power plants, Ahmadinejad said.

Iran is against nuclear bomb and is not seeking the nuclear weapon, he was quoted as saying by local satellite Press TV.

"We favor dialogue and logic and have proved that we are honest (concerning the nuclear program) and have moved in the correct path," IRNA quoted him as saying.

"We consider nuclear bombs against mankind," he said, adding that those seeking nuclear bombs are against human logic.

Referring to the threat of sanctions by the West over the country's disputed nuclear program, he said the language of threat will not slacken Iranians from gaining their rights.

The president said that "We believe relations among nations should be based on friendship and no state should be after humiliating nations and dominating them," IRNA reported.

Six world powers met on Thursday in New York behind closed doors to discuss possible steps over the Iranian nuclear issue.

Representatives of the five permanent members of UN Security Council -- Britain, China, France, Russia, the United States as well as Germany, met for more than three hours at Britain's UN mission.

"I don't think any of us want to impose sanctions," Russia's ambassador to the UN Vitaly Churkin told reporters after the meeting.

But what we want to have is a diplomatic solution and all sorts of constructive proposals have been made to Iran," he said. "If Iran wants to negotiate, they should start negotiating."

China's UN ambassador Li Baodong told reporters that Thursday's negotiations were "constructive" and that the "dual track approach is actually focused on diplomacy."

U.S. ambassador to the UN Susan Rice said the meeting was " worthwhile," but she did not go into the details.

The United States and other western countries have been pushing for a fourth round of UN sanctions to restrict Iran's nuclear efforts, which they say are aimed at developing nuclear weapons.

Iran has denied the western accusation and stressed its nuclear program is solely for peaceful purposes and intended to generate electricity for its population.