Little is known about Uwais Khagga except that he was a disciple of the famous saint Shaikh Rukn-i 'Alam. His grave is typical of those found around Multan, built in the style exemplified by the tomb of Bahaduun Zakaria. It displays the use of traditional tile-work in both the exterior and interior.
Source:
Khan, Ahmad Nabi. 1983. Multan: History and Architecture. Islamabad: Institute of Islamic History, Culture, and Civilization. pp. 176, 183.