The Cambridge History of India, Vol. III: Turks and Afghans v3.c25.6

v3.c25.6

In 1403 Tātār Khān, learning that Iqbāl Khān, or Mallū, who had driven him from Delhi, had so humiliated Mahmūd Shāh that the latter had fled from him, urged his father to march on Delhi and assume control of the situation, but Zafar Khān was well stricken in years and shrank from the enterprise. He so far yielded to his son's importunity as to place a force at his disposal in order that he might wreak his vengeance on his former antagonist, but Tātār Khān, finding himself at the head of an army, rose against his father, seized him and imprisoned him at Asāwal, and caused himself to be proclaimed king under the title of Nāsir-ud-dīn Muhammad Shāh. Having thus secured his father he appointed his uncle Shams Khān regent of the kingdom, with the title of Nusrat Khān, and set out for Delhi in order to carry out his original project, but as soon as he had left Asāwal Zafar Khān persuaded the regent, his brother, to follow the rebel and privily compass his death. Shams (Nusrat) Khān set out for Tātār's camp and there poisoned him in a draught of wine, and on his return released his brother and restored him to his throne, which he now ascended under the title of Sultān Muzaffar.