After being initially defeated by Arslan at Tiginabad, Bahram, appealed to Seljuk Sultan Ahmad Sanjar, whose sister, Gawhar Khatun, was greatly offended at the conduct of her eldest son Arslan ibn Mas'ud, towards the rest.
[6] Incited by her and perhaps by his own ambitious views Sanjar called on Arslan to release his brothers and on his refusal marched against him with an army of 30,000 cavalry and 50,000 infantry.
There, on the plain outside Ghazna, Arslan was decisively defeated and fled to India,[8] where he was supported by the Bu Halim Shaybani family.
[9] Ghazna was then subjected to forty days of pillage, which culminated in Bahram's installment as ruler and vassal of Sanjar.
[10] This struggle was Arslan's last, he was constrained to seek refuge among the Afghans, but was overtaken and put to death, leaving Bahram ibn Mas'ud in undisturbed possession of the throne which Arslan ibn Mas'ud himself had occupied for only two years.