Iranand world powers will hold technical talks next week in Vienna ahead of a political meeting to negotiate a comprehensive nuclear deal, a top Iranian negotiator said yesterday. Iran and the P5+1 group of world powers agreed last week on a timetable and framework for the negotiations for an accord that would allay Western concerns about Iran's nuclear programme in return for the lifting of crippling sanctions. "The issues on the agenda are enrichment (of uranium), the lifting of sanctions and international cooperation on peaceful nuclear energy," said Abbas Araqchi Iranian, deputy foreign minister. He did not specify the dates but the board is set to convene a meeting in Vienna from March 3 to 7. Negotiators hope to reach a final accord by July 20, when an interim agreement reached in November is set to expire.