Origins and architecture of the Taj Mahal older, pre-Mughal methods of proportion were employed as ordering principles in the Taj. The focus and climax of the Taj Mahal complex is the symmetrical white marble tomb; a cubic building with chamfered corners, with arched recesses known as pishtaqs. It is topped by a large dome and several pillared, roofed chhatris. In plan, it has a near perfect symmetry about 4 axes. It comprises 4 floors; the lower basement storey containing the tombs of Jahan and Mumtaz, the entrance storey containing identical cenotaphs of the tombs below in a much more elaborate chamber, an ambulatory storey and a roof
Taj Mahal was deposed by his son Aurangzeb and put under house arrest at nearby Agra Fort. Upon Shah Jahan's death, Aurangzeb buried him in the mausoleum next to his wife. In the 18th century, the Jat rulers of Bharatpur invaded Agra and attacked the Taj Mahal, the two chandeliers, one of agate and another of silver, which were hung over the main cenotaph, were taken away by them, along with the gold and silver screen. Kanbo, a Mughal historian, said the gold shield which covered the finial at the top of the main dome was also removed during the Jat despoliation.