Despite a setback at the fortress of Qasr al-Bahili, Kül-chor proceeded to raid deep into Transoxiana, mostly with the aid of the local population and their princes.
[1] The ensuing collapse of Turgesh power meant the disappearance of "the last great Turkish confederation in Western Asia for more than two centuries to come" (Gibb), leaving the path open for the Arabs to impose their rule on Transoxiana.
[1][3][12] Soon after, Kül-chor was acclaimed as khagan and Kut-chor was exiled to China, where he was symbolically put to death in the imperial temple, before being given an honorary commission and allowed to live off his days at the Chinese court.
[1] Later Arab sources on the other hand attribute Kül-chor's capture and execution to the last Umayyad governor of Khurasan, Nasr ibn Sayyar, in 739.
Gibb, however, argues that if he is to be identified with Baga Tarkhan, this cannot possibly be true, and that this tale is probably an exaggerated re-telling of the actual capture and execution of another, lesser Turkish leader by Nasr.