He was succeeded by his son Ala-ud-din after his death in A.D. 1510. He was an ambitious ruler who wanted to extend his territory. His support to New Comers and invasion of Ahmadnagar in league with them brought him into conflict with Nizam Shahi king. He was defeated and fled to Khandesh. After the departure of the Nizam Shahi troops he returned to Berar.
Ala-ud-din was soon involved in a struggle which ensued between Amir Ali Barid of Bidar who had invested Mahur one of the two divisions of Berar. Sarza Khan, son of Khudavand Khan, had succeeded him to the throne of Mahur after his father’s death. Ala- ud-din responded to the appeal of Sarza Khan, defeated Amir Ali Barid and occupied Mahur.
He appointed Ghalib Khan, another son of Khudavand Khan, as his governor of Mahur. Thus the boundaries of the kingdom of Berar now extended to the borders of Ahmadnagar. There now started struggle with Nizam Shahis which ultimately ended in the annexation of Berar by the former.
Pathri became the bone of contention between the two states. Nizam Shah I was eager to possess this city which happened to be his ancestral home. He offered another place to Imad Shah yielding much more revenue. This proposal was rejected by Imad Shah who fortified the town.
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Their relations were further estranged when Imad Shah gave shelter to some fugitives from Ahmadnagar. Burhan Nizam Shah made a surprise attack on Pathri and captured it (A.D. 1518). However, this town was soon recovered by Ala-ud-din in alliance with Ismail Adil Khan. Their combined armies ravaged Berar.
Bahadur Shah of Gujarat intervened on the request of Ala-ud-din, but withdrew after extricating a promise from Burhan Nizam Shah that he would return Pathri and Mahur to Ala-ud-din Imad Shah. Burhan did not fulfil his promise. Ala-ud-din died in A.D. 1530 and was succeeded by his eldest son Darya Imad Shah.