The tomb is of Sher Shah`s son, Salim Shah, built in the center of a lake at Sasaram. These tombs were built under Alawal Khan, the master architect. He was first commissioned to erect the tomb of Hasan Khan in 1535. A high compound wall encloses Hasan`s mausoleum with gateways on its sides and domed turrets at the corners. Attached to the tomb is the flat roofed prayer hall and madarsa. There is no plinth.
The main tomb consists of a large octagonal tomb chamber surrounded by a wide verandah on all the sides. On each of the eight sides, the verandah is provided with three arched openings and three corresponding domes above it. The main tomb chamber rises higher than the domed roofs of the verandah and supports the larger central dome. Within the tomb chamber there are 25 graves, including that of Hasan Khan Suri in the center. The middle story of the monument appears to have been executed hurriedly with just bare walls instead of the kiosks and jalis.
