Iran's President Hassan Rouhani said on Tuesday that Tehran favours talks with Washington but the United States must first lift sanctions it imposed on the Islamic republic.
"The Islamic Republic of Iran favours talks and negotiations and, if the US really wants to talk, before anything else it should lift all sanctions," Rouhani said in remarks aired live on state television.
Rouhani, speaking at the foreign ministry after meeting with his top diplomat, Mohammad Javad Zarif, said Iran was ready for talks regardless of whether or not the US was party to a landmark nuclear deal.
"Whether they want to come into the JCPOA or not, it's up to them," said Rouhani, referring to the 2015 nuclear deal known formally as the Joint Comprehensive Plan of Action.
The Iranian foreign minister on Monday confirmed reports that he had turned down an offer from a US senator to meet President Donald Trump at the White House.
Tensions between Iran and its arch-foe the United States have soared since Trump announced last year that the US was withdrawing from the deal and began reimposing sanctions against the Islamic republic.
The nuclear deal set limits on Iran's nuclear programme in exchange for the removal of punitive economic sanctions
The United States is highly gratified by co-operation from a great friend and partner like India on the Iranian oil sanctions, the White House said on Wednesday as the Trump administration slapped sanctions against Iranian Foreign Minister Javad Zarif, ramping up its tension with Tehran.
"We have been highly gratified by cooperation from a great friend and partner like India, and even less well-aligned countries such as China, in making the rather obvious choice that the United States would be the business partner of choice, not Iran," a senior official told reporters during a conference call after the Trump administration slapped sanctions against the Iranian foreign minister.
India, which has galloping energy needs, went out of its way to co-operate with the United States. India has brought down the import of oil from Iran, with which it has historic and cultural ties, to almost zero.
(With PTI inputs)