The Chachnāma (Fatḥnāma-yi Sind) 44.2.2

44.2.2

Muhammad Kásim now determined to march against Bráhmanábád. There were two fortified towns between Ráor and Bráhmanábád, called Bahrór and Dahlelah and there were about 16,000 fighting men in those forts. Muhammad Kásim went to Bahrór where the fighting was so prolonged that he was obliged to remain there for two months. Eventually he ordered that some of his men should fight during the day, and others should throw naphtha arrows and mangonel stones at night. In this way, almost all the fighting men of the enemy were killed, and the castle walls were broken down. The survivors were taken prisoners, and a large booty was secured, one-fifth of which was duly sent to the royal treasury. When the news of the fall of Bahrór reached the people of Dahlelah, and they further learnt that Muhammad Kásim was so very powerful in war that safety was impossible, those of them who were merchants and traders went to various towns of Hind but those who belonged to the military class remained behind to defend their country.