 Tughshada, however, still tried to achieve independence from the Umayyad Caliphate, and in 718, along with Tarkhun's successor Gurak, Narayana, the king of Kumadh, and Tish, the king of Chaghaniyan, he sent an embassy to the Tang dynasty of China, where they asked for aid against the Arabs.In ca.728, an anti-Arab revolt erupted in Bukhara, which was suppressed one year later.