did not want to join, in light of both NWFP and Assam being ruled by Congress governments. However, Jinnah differed and saw the grouping plan as mandatory. Another point of difference concerned the Congress position that a sovereign constituent assembly would not be bound to the plan. Jinnah insisted it be binding once the plan was accepted. The groupings plan maintained India's unity, but the organisation's leadership and, most of all Nehru, increasingly believed that the scheme would leave the centre without the strength to achieve the party's ambitions. Congress's socialist section led by Nehru desired a government able to industrialize the country and to eliminate poverty. Nehru's speech on 10 July 1946 rejected the idea that the provinces would be obliged to join a group and stated that the Congress was neither bound nor committed to the plan. In effect, Nehru's speech squashed the mission's plan and the chance to keep India united. Jinnah interpreted the speech as another instance of treachery by the Congress. With Nehru's speech on groupings, the Muslim League rescinded its previous approval of the plan on 29 July. Interim government and breakdown Concerned by the diminishing British power, Wavell was eager to inaugurate an interim government. Disregarding Jinnah's vote, he authorised a cabinet in which Nehru was the interim prime minister. Sidelined and with his Pakistan of "groups" refused, Jinnah became distraught. To achieve Pakistan and impose on Congress that he could not be sidelined, he resorted to calling for his supporters to utilize "direct action" to demonstrate their support for Pakistan, in the same manner as Gandhi's civil disobedience campaigns, though it led to rioting and massacres on religious grounds in some areas. Direct Action Day further increased Wavell's resolve to establish the interim government. On 2 September 1946, Nehru's cabinet was installed. Millions of Indian Muslim households flew black flags to protest the installation of the Congress government. Jinnah did not himself join the interim government but sent Liaquat Ali Khan into it to play a secondary role. Congress did not want to give him the important position of home minister and instead allowed him the post of finance minister. Liaquat Ali Khan infuriated Congress by using his role to prevent the functioning of Congress ministries, demonstrating (under Jinnah's instructions) the impossibility of a single government for India. Britain tried to revive the Cabinet Mission's scheme by sending Nehru, Jinnah and Wavell