Iran's top nuclear negotiator is in India for talks with senior government officials.
Ali Larijani's trip comes as the United States, European Union countries and the U.N. nuclear agency are pressing Iran to stop work on nuclear fuel that could also be used to make weapons. Iran insists it has the right to enrich uranium.
Asked about the dispute Wednesday, Mr. Larijani said it is important for Iran to continue cooperating with the International Atomic Energy Agency, but he said it is up to Iran to decide on the nuclear fuel question.
Mr. Larijani said the focus of his trip to India was on strategic relations, and energy in particular.
India's foreign minister will travel to Tehran Friday for talks expected to include a proposed gas pipeline between Iran and India.