The capital of the Mughal Empire was shifted from Agra to Shahjahanabad (present-day Delhi) in 1648. The reason for this shift was primarily due to strategic, political, and symbolic considerations. Shah Jahan wanted to establish a new imperial city that would reflect the grandeur of his reign, and he chose the location of Shahjahanabad for this purpose. It was designed as a planned city with impressive architectural features and significant structures like the Red Fort and the Jama Masjid. This move allowed Shah Jahan to consolidate his power and project the image of a powerful and prosperous empire.