Delhi Sultan Muhammad bin Tughluq ( 1324–1351 CE) then sent Syed Ibrahim Mallick with an army to conquer the Magadha region. After a fierce battle, the outnumbered Raja army was defeated and Raja Biththal was killed. The conquest of Bihar was a major achievement for Delhi, and on this occasion the Sultan conferred upon Syed Ibrahim Mallick the title of "Madarul Mulk", after which he was called "Mallick Baya". He was then appointed governor of Bihar by the Sultan, and he ruled over the region until his assassination in 1353 CE.