Option d is the correct answer. Chin Qilich Khan assumed the title of Nizam-ul-Mulk Asaf Jah to establish himself as an independent ruler with his base in Hyderabad. He was a prominent noble and military commander in the Mughal Empire under Aurangzeb since 1765. In 1719, Chin Qilich Khan broke up with the Mughals after the death of Aurangzeb and declared himself the ruler of the Hyderabad State. He was recognized as the Nizam of Hyderabad by the Mughal emperor Bahadur Shah I in 1724.