Supporting the call for the British to "Quit India", Azad began exhorting thousands of people in rallies across the nation to prepare for a definitive, all-out struggle. As Congress president, Azad travelled across India and met with local and provincial Congress leaders and grass-roots activists, delivering speeches and planning the rebellion. Despite their previous differences, Azad worked closely with Patel and Dr. Rajendra Prasad to make the rebellion as effective as possible. On 7 August 1942 at the Gowalia Tank in Mumbai, Congress president Azad inaugurated the struggle with a vociferous speech exhorting Indians into action. Just two days later, the British arrested Azad and the entire Congress leadership. While Gandhi was incarcerated at the Aga Khan Palace in Pune, Azad and the Congress Working Committee were imprisoned at a fort in Ahmednagar, where they would remain under isolation and intense security for nearly four years. Outside news and communication had been largely prohibited and completely censored. Although frustrated at their incarceration and isolation, Azad and his companions attested to feeling a deep satisfaction at having done their duty to their country and people.