"EAM @SushmaSwaraj and Iranian Foreign Minister @JZarif held constructive discussions on all bilateral issues of mutual interest". Iran is its third largest supplier after Iraq and Saudi Arabia and meets about 10 per cent of its total needs.
Zarif, who is on a two-day visit to India, had said the United States is escalating tensions "unnecessarily".
However, the new government that is expected to be in place within the next three weeks in New Delhi is expected to take a final decision on the matter.
Iranian Foreign Minister Javad Zarif met with his Indian counterpart in New Delhi, days after India chose to follow USA restrictions on buying Iranian oil.
During the visit, India and Iran signed almost a dozen agreements, centrepiece of which was a deal on development of Chabahar port. However, Washington had granted a six-month waiver from sanctions to eight countries, including India.
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"India would like all parties to the agreement to continue to fulfil their commitments and all parties should engage constructively and resolve all issues peacefully and through dialogue", New Delhi is understood to have communicated.
The Iran nuclear deal, known as the Joint Comprehensive Plan of Action (JCPOA), which was inked in 2015 that had then paved the way for lifting of United States sanctions on Iran.
The visiting Iranian foreign minister evaluated his meeting with his Indian counterpart "positive and constructive" and added, "as we have clarified positions of the Islamic Republic of Iran for our trade partners such as Russian Federation, today, latest developments on JCPOA and measures taken by Iran in this field were also explained clearly".
Indo-Iran ties have expanded in various fields in recent years. He is also said to have mentioned that a 60-day timeline had been given to the EU-3 - UK, France and Germany - and other parties to the JCPOA to restore the oil and banking channels.