Deputy Head of the Atomic Energy Organization of Iran (AEOI) for Power Plant Affairs Mohammad Ahmadian made the remarks addressing a ceremony in the Central city of Arak on Friday.
Ahmadinejad said "the West is using Iran's civilian nuclear program as an excuse to impede the nation's scientific progress and advancements".
He underlined the western states know well that Tehran doesn't aim to produce nuclear weapons but They want to impede Tehran's technological progress by their sanctions and pressures.
In similar remarks earlier this year, Supreme Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei once again underscored Iran's firm and steadfast opposition to the possession, production and use of the nuclear weapons, and stressed Iran's honesty in this regard.
"If Iran intended to produce nuclear weapons, the US by no means could prevent the Iranian nation's bid," Ayatollah Khamenei said, addressing a large number of people in Tehran at the time.
"The Islamic Republic of Iran doesn't intend to produce nuclear weapons and this is not related to the US concerns, rather it is based on the belief which assumes (production and use of) nuclear weapons as a crime against humanity and while it lays emphasis on its non-production, it also urges elimination of the existing nuclear weapons in the world," he added.
Ayatollah Khamenei said the United States' claim that Iran is building nuclear weapons is nothing but deceitful allegation, and added that the underlying goals of the US and its allies is impeding Iran's right to access civilian nuclear technology for peaceful purposes, "although they will not succeed in stopping the Iranian nation, and this nation will do what it wants to do on the basis of its explicit right."
Washington and its Western allies accuse Iran of trying to develop nuclear weapons under the cover of a civilian nuclear program, while they have never presented any corroborative evidence to substantiate their allegations. Iran denies the charges and insists that its nuclear program is for peaceful purposes only.
Tehran stresses that the country has always pursued a civilian path to provide power to the growing number of Iranian population, whose fossil fuel would eventually run dry.
Despite the rules enshrined in the Non-Proliferation Treaty (NPT) entitling every member state, including Iran, to the right of uranium enrichment, Tehran is now under four rounds of UN Security Council sanctions and western embargos for turning down West's calls to give up its right of uranium enrichment.
Tehran has dismissed West's demands as politically tainted and illogical, stressing that sanctions and pressures merely consolidate Iranians' national resolve to continue the path.
The Islamic Republic says that it considers its nuclear case closed as it has come clean of IAEA's questions and suspicions about its past nuclear activities.
Political observers believe that the United States has remained at loggerheads with Iran mainly over the independent and home-grown nature of Tehran's nuclear technology, which gives the Islamic Republic the potential to turn into a world power and a role model for the other third-world countries. Washington has laid much pressure on Iran to make it give up the most sensitive and advanced part of the technology, which is uranium enrichment, a process used for producing nuclear fuel for power plants.