"We will carefully study the proposals in the coming few days and will make our opinion public in the proper time," Mottaki was quoted as saying.

Iran was redefining its relationship with the European Union (EU), said the minister, adding that the United States had better not to continue its previous attitude, or Iran will continue opposing to illogical methods taken towards Iran's nuclear right.

Mottaki termed the recent media rumors of the proposal's content and Iran's possible stance as "presumption and deductions".

Meanwhile, Mottaki warned that the other side has required Iran "not to reveal anything yet, but if they do not respect the confidentiality and matters were publicized through any means, of course we will also announce our stances clearly on the nuclear issue".

EU foreign policy chief Javier Solana on Tuesday presented Iran the six-nation proposal over Iran's disputed nuclear issue which had been agreed by the five permanent members of the UN Security Council plus Germany in a meeting in Vienna.

The proposal includes both incentives aimed at persuading Iran to suspend uranium enrichment and possible sanctions if Iran chooses not to comply.

Iran's top officials have expressed cautious optimism over the new package, saying "there were positive steps but also ambiguities", and promised to give a formal response after carefully study.

According to latest reports from Western media, the proposals might include multilateral talks with the U.S., the West's help to build nuclear reactors for Iran, a guaranteed supply of nuclear fuel and permission for Iran to buy Airbus aircraft and spare parts if Tehran suspends uranium enrichment first.

Washington may also offered a lift of certain sanctions, such as supplying Tehran with some nuclear technology and a permission to buy Boeing aircraft, if Iran agrees to an enrichment freeze, said western diplomats familiar with the package.