King Sabugtageen fought against Simonids (nation) and defeat them. He took Ghazni (place in Afghanistan) from Simonids and maintained government there. In this way, Ghazni and Khorasan become under the kingdom of King Sabugtageen. He organized his forces after taking over the charge of Ghazni and moved them towards Hindustan. King Sabugtageen defeated Raja Jaipal at Peshawar and extended government of Khorasan up till Peshawar. In this time, Sultan Mahmood promoted Persian literature.