Muhi-ud-Din Muhammad also known as Aurangzeb or by his title Alamgir was the sixth emperor of the Mughal Empire. He ruled over most of the Indian subcontinent through Islamic Sharia. His reign lasted for 49 years from 1658 until his death in 1707. During this time, Aurangzeb greatly expanded the territory of the Mughal Empire. He was constantly at war. Victories in the south expanded the Empire to more than 4 million square kilometres. His empire was the world's largest economy, valued 27% of world's GDP. He was the last great and powerful ruler of the Mughal dynasty. After his death, the power of the Mughal Empire declined quickly. The administrator of Mughal Kingdom support and grow this dynasty.