If Khayr Pūlād's ancestry is correctly identified, he was the first member of his branch of the Shibanids to take the throne of Sarai; the earlier khans
Khiḍr,
Tīmūr Khwāja, and
Murād belonged to a different branch of the same family. Khayr Pūlād appears to have headed the
Ulus of Shiban, which may have provided him with the manpower and resources to stake his own claim on the throne of the Golden Horde, disputed among several contenders. Khayr Pūlād may have exploited the struggle between his distant cousin Murād and first
Kildi Beg, then Mamai, to seize Sarai in late 1362. Whether he took the city from Mamai's protégé
ʿAbdallāh or from Murād remains unclear. While Murād, ensconced at Gülistan, and Mamai continued to fight each other, Khayr Pūlād attempted to suborn some of Mamai's emirs in the
Crimea, for example issuing tax exemptions for a certain emir Ḥājjī Beg and his clan, the Shuraqul. This caused Mamai to prioritize fighting Khayr Pūlād rather than Murād. Mamai advanced on Sarai. He either defeated or weakened Khayr Pūlād, who lost possession of Sarai, apparently to another Shibanid,
ʿAzīz Shaykh, in the autumn of 1364. Khayr Pūlād replaced Murād as ruler of Gülistan, although whether he is identical with the Pūlād Khwāja who issued coins there in 1365 remains unclear. Eventually, Gülistan also found itself under the rule of ʿAzīz Shaykh, by the fall of 1365. Whether Khayr Pūlād perished during these changes of fortune or returned to the Ulus of Shiban is unknown. ==Descendants==