The devised solutions in the final Lausanne communiqué will serve as a platform based on which, by grace of God, those solutions will be finalized in May,' said Zarif in the airport.

Zarif arrived back home in Tehran after successful completion of Lausanne nuclear talks between Iran and six world powers earlier Friday morning, IRNA reports.

Zarif was received by a relatively large group of cheering Iranian citizens in the airport earlier this morning.

Meanwhile Zarif Deputy before departing in a phone interview with IRIB said International recognition of the legitimacy of Iran's nuclear program is the greatest achievement for Tehran in these nuclear negotiations.

He said that the communiqué in question is the result of some 16 months of intensive talks, adding, 'This time we achieved a point from which materializing the basic demands of the Islamic Republic throughout the negotiations is possible and this is a very important achievement for our country.'

The Iranian diplomat said that the general strategy pursued in the ongoing nuclear negotiations throughout the past 16 months has been the win-win policy, in which the other side's concerns, too, were respected.

The Lausanne talks ended late Thursday night issuing a joint communiqué which was read out at the Lausanne Polytechnic University.

The joint communiqué was read out for the media by Zarif and the EU foreign policy chief Federica Mogherini.