Zaman bayan Vedic na Birane na Biyu ya ga raguwar Brahmanism.A ƙarshen zamanin Vedic, ma'anar kalmomin Vedas ya zama m, kuma an gane shi a matsayin "tsayayyen jerin sauti" tare da ikon sihiri, "yana nufin zuwa ƙarshe."Tare da ci gaban biranen, wanda ke barazana ga samun kudin shiga da goyon bayan Brahmins na karkara;Yunƙurin addinin Buddha ;da yakin Indiyawan Alexander the Great (327-325 KZ), fadada daular Mauryan (322-185 KZ) tare da rungumar addinin Buddah, da mamayewar Saka da mulkin arewa maso yammacin Indiya (2nd c. KZ - 4th c. CE), Brahmanism ya fuskanci babbar barazana ga wanzuwarsa.A wasu nassosi daga baya, Arewa maso Yamma-Indiya (waɗanda nassosin farko suka ɗauka a matsayin wani ɓangare na "Aryavarta") ana ma ganin su a matsayin "marasa tsarki", mai yiwuwa saboda mamayewa.Karnaparva 43.5-8 ya bayyana cewa waɗanda suke zaune a kan Sindhu da koguna biyar na Punjab najasa ne kuma dharmabahya.