The Rashtrakutas became powerful because:Rashtrakutas were under the rule of the Chalukyas of Karnataka.In the mid-700s, a Rashtrakuta chief named Dantidurga overthrew the Chalukyan overlord.He carried out a ritual, Hiranya-garbha by taking help from the Brahmans.This then went on to become the rebirth of the person as a Kshatriya, if he was not born as a Kshatriya.