Immediately after the murder of Jalal-ud-din Firuz ‘Ala-ud-din was proclaimed Sultan. The division in Firuz’s family helped ‘Ala-ud-din’s cause. In total disregard of Arkali Khan, the eldest surviving son, the queen-mother Malikah-i-Jahan declared her second son, Qadr Khan, as Sultan with the title of Rukn-al-din Ibrahim. The supporters of Arkali Khan at Delhi refused to recognize Ibrahim. Ala-ud-din lost no time and marched on Delhi with "iron in one hand and gold in the other". At Bada’un, he met an army sent from Delhi but it was won over by lavish distribution of gold. As Ala-ud-din approached Delhi, Ibrahim came out to give a fight but the bulk of his army deserted him. Ibrahim was forced to flee to Multan with the queen-mother and Ahmed Chap. Ala-ud-din marched into Delhi and resided in the Red Palace of Balban.