Iran insists its nuclear programme is aimed only at producing electricity but has so far failed to convince the West, which accuses the Islamic state of secretly trying to produce nuclear bombs.

"The Iranian nation is in favour of talks to resolve the (nuclear) issue with any of you (countries). We will slap those who want Iran to abandon its right (to nuclear technology) on the mouth," Ahmadinejad said in a televised address in the western city of Hamedan.

Ahmadinejad in March ruled out any talks with the West over Iran's disputed nuclear programme, saying Iran would only discuss the issue with the U.N. nuclear watchdog, the IAEA.

Britain, France, Germany, the United States, Russia and China want EU foreign policy chief Javier Solana to meet Iran's chief nuclear negotiator, Saeed Jalili, to try to reopen talks on offers of incentives for Iran to halt its work.

But Iran, the world's fourth-largest crude exporter, says the nuclear programme aims to produce electricity so it can sell more of its oil and gas abroad.

The U.N. Security Council has imposed three rounds of sanctions on Tehran for not halting its sensitive nuclear activities.

An April meeting in Shanghai of the five permanent members of the U.N. Security Council -- the United States, Russia, China, Britain and France -- over how to sweeten the incentives to Tehran fell short of reaching an agreement.

Ahmadinejad insisted Tehran would reject talks with the West based on their demand for a nuclear halt in exchange for trade benefits and a halt to sanctions.

"Iran's enemies (the West) should know our nation is in favour of logical talks ... but talks should be based on respecting our rights," Ahmadinejad said.

U.S. President George W. Bush and Prime Minister Gordon Brown vowed last week to prevent Iran from developing a nuclear bomb, possibly by expanding sanctions.

Ahmadinejad said no power in the world "would dare to violate" Iran's rights.

"They (the West) should know that our nation will preserve all its rights with logic and unity," Ahmadinejad said, as thousands of people chanted "nuclear energy is our obvious right."