 Mirza Haidar himself entered the service of Sultan Said Khan just before the latter's conquest of Mirza Aba Bakr's kingdom.During the khan's lifetime he conducted a holy war in Ladakh on his behalf.After Sultan Said Khan's death in 1533 his son Abdur Rashid Khan executed Mirza Haidar's uncle; fearing the same fate, Mirza Haidar fled to the Mughal Emperor Humayun in northern India.