TEHRAN (Reuters) - Iranian President Mahmoud Ahmadinejad said on Sunday he would propose at least three female ministers in his new cabinet following Irans disputed election, an unprecedented move in the conservative Islamic state. The nationalist also said the West must be held to account for stoking unrest in Iran after presidential vote, as the third mass trial of demonstrators accused of trying to overthrow clerical rule began. Ahmadinejad has until Wednesday to present a cabinet to parliament for approval but may get a rough ride from the conservatives who dominate the assembly, as well as from his moderate foes who see his next government as illegitimate. He did not say who would be in charge of the Oil Ministry of the worlds fifth-biggest crude exporter. But he said Industries and Mines Minister Ali Akbar Mehrabian, a close ally who had been seen as a potential candidate, would remain in his old job. A semi-official news agency separately quoted a senior lawmaker as saying Ahmadinejad was expected to nominate chief nuclear negotiator Saeed Jalili for the foreign ministers post. Ahmadinejads surprise announcement on state television that he would nominate several female ministers may be an attempt to shore up support among women. The presidents moderate opponents campaigned on the need to enhance their position in Iran. Activists working for more female rights say women face institutionalised discrimination in Iran, for example in legislation relating to divorce, child custody and inheritance, and have accused Ahmadinejad of neglecting such issues. With the 10th presidential election, we have entered a new era ... conditions changed completely and the government will see major changes, Ahmadinejad said. He named two of his proposed female ministers: conservative lawmaker Fatemeh Ajorlou as social welfare minister and former member of parliament Marzieh Vahid Dastjerdi, a university professor and gynaecologist, as health minister. At least one more will be added, Ahmadinejad said. Among other planned cabinet changes, he said Heydar Moslehi, now a presidential adviser on clerical affairs, would become intelligence minister after his predecessor was sacked. Economy Minister Shamseddin Hosseini would retain the post. Iran accuses the United States and Britain of inciting post-election protests in an attempt to topple the clerical establishment. They deny the charge. You (the West) should be held accountable for your actions, Ahmadinejad said in a speech on Sunday. The Iranian nation would ... slap those with ill intentions so hard that they would lose their way home. At Sundays trial, no prominent moderate politicians were among the 28 accused named by media, which showed pictures of some of them sitting in a courtroom wearing light-coloured prison clothes. A Jewish teenager was among those tried.