that the Kambojas , Yavanas , Sakas , Pahlavas etc were originally high-class Kshatriyas , but it was Vedic king Sagara , the ruler of Kosala , who had forbidden these invaders from performing "Svadhyayas" and "Vasatkaras" ( Vedic rituals ) and thereby, divested them off their noble Kshatriya status, because