Aurangzeb is considered a very strong and authoritarian ruler. You can see here that he is able to expand the territory of the Mughal Empire well into South India. At its maximum extent, the Mughal Empire is now rivaling the amount of territory that was controlled by the Maurya Empire roughly 2,000 years before this time. Despite being the last truly strong Mughal emperor, he's also known as the least tolerant of the emperors. After the death of Aurangzeb in 1707, he's succeeded by weaker and weaker Mughal rulers. The 18th century, you see a significant decline in the power of the Mughals, the territory they have. Delhi is famously sacked by Nader Shah, the Persian conqueror.