On Saturday, the International Atomic Energy Agency (IAEA) adopted a tough resolution that raised questions over Iran's failure to declare its possession of certain equipment and materials which could be used to make nuclear weapons.
"The IAEA resolution was not drafted in a fair way," Rowhani, the head of Iran's Supreme National Security Council, said in a statement issued by the Iranian embassy in Paris.
"The Europeans acted in a relatively positive way. Nonetheless, their actions, and in particular that of the three countries that are our interlocutors at the talks, did not meet our expectations," Rowhani said.
But Iran's top nuclear policymaker said the weekend meeting of the IAEA's board of governors was generally positive, with Iran given the chance to express its views.
Iran had put off inspections scheduled for last week after the IAEA adopted its resolution, but in Tokyo on Tuesday, Rowhani said Tehran would accept an IAEA inspection on March 27 without condition.