A senior Iranian official on Sunday renewed the call on world powers to recognize Iran's "right" of uranium enrichment, semi-official Fars news agency reported.
"The P5+1 group has to accept Iran's indispensable right to the use of nuclear technology for peaceful purposes," Iran's Supreme Leader's Advisor for International Affairs, Ali-Akbar Velayati, said, underlining Tehran's commitment to the nuclear Non- Proliferation Treaty.
"What is emphasized by us is the right of enrichment for peaceful means which is not against international regulations," said Velayati, a presidential hopeful for the June election.
On Sunday, Iranian lawmaker Mohammad Firouzi told Fars that Western sanctions and pressures could not force Tehran to give up its nuclear rights.
"The Western countries believe that acceptance of their demands (by Iran) means progress in the Iran-P5+1 negotiations, but Iran will not relinquish its rightful nuclear demands under the West's pressures," the lawmaker was quoted as saying.
The two-day nuclear talks between Iran and the P5+1 group (the five permanent UN Security Council members plus Germany) over the former's disputed nuclear program concluded in Almaty of Kazakhstan on Saturday, but no breakthrough was made in the intensive talks.