However , unlike his father , he was hostile to the Ghaznavids and in 1034 allied with Ali - Tegin , whom he together planned with to invade Khorasan .
Meanwhile , in Khwarazm , Altun - Tash 's son Harun became the new ruler of the region .
Unlike his father , he was hostile to the Ghaznavids and in 1034 allied with Ali - Tegin , whom he together planned with to invade Khorasan .
Meanwhile , in Khwarazm , Altun - Tash 's son Harun became the new ruler of the region .