A watan Oktoba na shekara ta 979, wani eunuch mai suna Đỗ Thích ya kashe Emperor Đinh Bộ Lĩnh da Prince Đinh Liễn na Dai Co Viet a lokacin da suke barci a farfajiyar fadar.Mutuwar su ta haifar da tashin hankali a duk fadin kasar ta Dai Viet.Bayan ya ji labarin, Ngô Nhật Khánh, wanda har yanzu yana zaune a gudun hijira a Champa, ya ƙarfafa sarkin Cham Jaya Paramesvaravarman I don ya kai hari a Đại Việt.An dakatar da farmakin sojojin ruwa saboda wata mahaukaciyar guguwa.^{[127 <>]} A cikin shekaru masu zuwa, sabon sarkin Bietnam, Lê Hoàn, ya aika da jakadu zuwa Champa don ya sanar da hawansa kan karaga.^[128] Amma, Jaya Paramesvaravarman na tsare su.Kamar yadda babu wata fa'ida ta sulhu, Lê Hoàn ya yi amfani da wannan matakin a matsayin hujja don balaguron ramuwar gayya zuwa Champa.^{[129 <]} > Wannan ya nuna farkon ci gaban kudancin Vietnam da Champa.^[130]A cikin 982, Lê Hoàn ya umarci sojoji kuma ya mamaye babban birnin Cham na Indrapura (Quảng Nam na zamani).An kashe Jaya Paramesvaravarman an kashe ni yayin da mahara suka kori Indrapura.A cikin 983, bayan yakin ya lalata arewacin Champa, Lưu Kế Tông, wani jami'in sojan Vietnam, ya yi amfani da tarzoma kuma ya kwace iko a Indrapura.^{[131 <>]} A cikin wannan shekarar, ya yi nasarar kalubalantar ƙoƙarin Lê Hoàn na cire shi daga mulki.^[132] A cikin 986, Indravarman IV ya mutu kuma Lưu Kế Tông ya yi shelar kansa Sarkin Champa.^[128] Bayan cin zarafin Lưu Kế Tông, Chams da Musulmai da yawa sun gudu zuwa Song China, musamman yankunan Hainan da Guangzhou, don neman mafaka.^[131] Bayan mutuwar Lưu Kế Tông a shekara ta 989, an naɗa sarkin Cham Jaya Harivarman II sarauta.