Agra, Aurangzeb pursued Dara Shikoh, chasing him across the north-western bounds of the empire. Aurangzeb claimed that Dara was no longer a Muslim and accused him of poisoning the Mughal Grand Vizier Saadullah Khan. After a series of battles, defeats and retreats, Dara was betrayed by one of his generals, who arrested and bound him. In 1658, Aurangzeb arranged his formal coronation in Delhi. On 10 August 1659, Dara was executed on grounds of apostasy and his head was sent to Shahjahan. The first prominent execution of Aurangzeb was that of his brother Prince Dara Shikoh, who was accused of being influenced by Hinduism although some sources argue it was done for political reasons. Aurangzeb had his allied brother Prince Murad Baksh held for murder, judged and then executed. Aurangzeb is accused of poisoning his imprisoned nephew Sulaiman Shikoh. Having secured his position, Aurangzeb confined his frail father at the Agra Fort but did not mistreat him. Shah Jahan was cared for by Jahanara and died in 1666. Reign Bureaucracy Aurangzeb's imperial bureaucracy employed significantly more Hindus than that of his predecessors. Between 1679 and 1707, the number of Hindu officials in the Mughal administration rose by half, to represent 31.6% of Mughal nobility, the highest in the Mughal era. Many of them were Marathas and Rajputs, who were his political allies. However, Aurangzeb encouraged high ranking Hindu officials to convert to Islam. Economy Under his reign, the Mughal Empire contributed to the world's GDP by nearly 25%, surpassing Qing China, making it the world's largest economy and biggest manufacturing power, more than the entirety of Western Europe, and its largest and wealthiest subdivision, the Bengal Subah, signaled proto-industrialization. Establishment of Islamic law Aurangzeb was an orthodox Muslim ruler. Subsequent to the policies of his three predecessors, he endeavored to make Islam a dominant force in his reign. However these efforts brought him into conflict with the forces that were opposed to this revival. Aurangzeb was a follower of the Mujaddidi Order and a disciple of the son of the Punjabi saint, Ahmad Sirhindi. He sought to establish Islamic rule as instructed and inspired by him. Historian Katherine Brown has noted that "The very name of Aurangzeb seems to act in the popular imagination as a signifier of politico-religious bigotry and repression, regardless of historical accuracy." The subject has also resonated in modern times with popularly accepted claims that he