history until today. The Death of the ruler Another of the saint's curses was Hunuz Dilli door ast (Delhi is still far away). The Emperor was engrossed in a campaign in Bengal at this time. He was successful and was on his way to Delhi. However, his son, Muhammad bin Tughlaq, met him at Kara in Uttar Pradesh. Allegedly at the prince's orders, a Shamiana (Tent) was made to fall on the Emperor, who was crushed to death (1324). Mausoleum of Ghiyas ud-Din Tughluq The 'Mausoleum of Ghiyath al-Din Tughluq' is connected by a causeway to the southern outpost of the fortification. This elevated causeway in length, supported by 27 arches, leads across a former artificial lake, however sometime in 20th century portion of causeway was pierced by the Mehrauli-Badarpur road. After passing an old Pipal tree, the complex of Ghiyas ud-din Tughluq's tomb is entered by a high gateway made up of red sandstone with a flight of steps. The actual mausoleum is made up of a single-domed square tomb about with sloping walls crowned by parapets. In contrast to the walls of the fortification made up of granite, the sides of the mausoleum are faced by smooth red sandstone and inlaid with inscribed panels and arch borders from marble. The edifice is topped by an elegant dome resting on an octagonal drum that is covered with white slabs of marble and slate. Inside the mausoleum are three graves: The central one belongs to Ghiyas ud-din Tughluq and the other two are believed to be those of his wife and his son and successor Muhammad bin Tughluq. In the north-western bastion of the enclosure wall with its pillared corridors is another octagonal tomb in a similar style with a smaller marble dome and inscribed marble and sandstone slabs over its arched doors. According to an inscription over its southern entrance this tomb houses the remains of Zafar Khan. His grave was at the site prior to the construction of the outpost and was consciously integrated into the design of the mausoleum by Ghiyath al-Din himself. Architecture Tughluqabad still consists of remarkable, massive stone fortifications that surround the irregular ground plan of the city. The sloping rubble-filled city walls, a typical feature of monuments of the Tughluq dynasty, are between high, topped by battlemented parapets and strengthened by circular bastions of up to two stories height. The city is supposed