Mir Qamar-ud-din Khan Siddiqi (11 August 1671 – 1 June 1748) also known as Chin Qilich Qamaruddin Khan, Nizam-ul-Mulk, Asaf Jah and Nizam I, was the first Nizam of Hyderabad.
He began his career during the reign of the Mughal emperor Aurangzeb, who made him a general. Following the death of Aurangzeb in 1707, Asaf Jah preferred to remain neutral, refusing to favour any one of Aurangzeb's warring sons. When Aurangzeb's third son Bahadur Shah ultimately emerged victorious, Asaf Jah was rotated as governor of multiple Mughal provinces until 1714, when he was appointed as Viceroy of the Deccan with authority over six Mughal provinces in southern India from 1714 to 1719. From 1719 onwards, he was involved in combating the intrigues of the Sayyid brothers. From 1720 to 1722, he helped the new Mughal emperor Muhammad Shah in eliminating the Sayyid brothers and was elevated, as a reward, to the grand viziership from 1722 to 1724.