After Sikandar's death, his eldest son Mir succeeded him as the Sultan, having adopted the title of Ali Shah.
Ali Shah was defeated by Sultan Zain-ul-Abidin at Thanna with the help of Jasrath Khokhar, a chieftain from Pothohar Plateau.
Although a religious man, Ali Shah was weak-willed and his desire to attain Mecca buckled under descriptions of the arduous journey ahead.
The ancient texts vary regarding why it was that Zain-ul-Abidin relinquished his recently acquired status without a fight but there is no disagreement that this is in fact what happened.
The forces met at Thanna and Khokhar defeated the challenger, who had ignored the advice of his father-in-law to hold back until the Jammu army could join him.