New Delhi, April 14 -- Iran is ready for another round of negotiations with the US provided there are no "unlawful demands", though Tehran is fully prepared for "all options" if Washington goes ahead with its blockade of Iranian ports, Iranian ambassador Mohammad Fathali said on Monday. The first face-to-face talks between Iran and the US in 47 years, held in Islamabad over the weekend, ended without any breakthrough. US President Donald Trump has imposed a naval blockade of ships entering or leaving Iranian ports as part of efforts to pressure Tehran amid a two-week ceasefire. "If you want progress in any diplomatic process, (both) sides (should be) ready for negotiations. And they should avoid unlawful demands," Fathali told a media brief...