huh ? I dont know how much of that is true or fable.Ummayyad involvement in sindh predates abdullah ghazi conisderably so i doubt if its true.
however its established that Hukaym b jabalah and Sayfi b Fasayl Shaybani important supporters of ali were amongst the first raiders of sindh in uthman’s time.And they fought against hindu rajas there so to think that an Alid wud be welcome there is rather surprising.