An Iranian nuclear negotiator said that the Islamic republic is involved in nuclear talks with the world powers out of goodwill, Press TV reported on Tuesday.

Iran has fulfilled its commitments under the interim nuclear accord it has already signed with the six major powers, Majid

Takht-e-Ravanchi was quoted as saying.

"We also expect western states to avoid raising issues that harm the progress of the nuclear talks and the agreements reached in Geneva," said Takht-e-Ravanchi.

The Iranian nuclear negotiator expressed hope that the ongoing talks between Iran and the P5+1 group -- Britain, China, France, Russia, the United States plus Germany -- over Iran's nuclear issue would lead to a comprehensive deal.

Iran and the world powers held a two-day nuclear meeting in Vienna in March. Both EU foreign policy chief Catherine Ashton and Iranian Foreign Minister Mohammad-Javad Zarif called the talks " substantive" and "useful."

West is asking Iran to significantly scale back its nuclear program to ensure the peaceful nature of its nuclear plan. Meanwhile, Iran wants the West to relieve sanctions imposed on the country.

Both sides have agreed to reconvene the next round of talks on May 7 in Vienna, in which they would continue to discuss tough issues, including Iran's heavy water reactor.

Iran and the six major states struck a 6-month interim deal in Geneva, Switzerland last November, according to which Iran would suspend some controversial nuclear activities starting on Jan. 20, while western states would lift some sanctions imposed on Iran.