In the 11th century CE, after the decline of the Pala dynasty, a Hindu king, Adi Sura,  brought in five Brahmins and their five attendants from Kannauj, his purpose being to provide education for the Brahmins already in the area, whom he thought to be ignorant, and to revive traditional orthodox Brahminical Hinduism. These Vedic Brahmins were supposed to have nine gunas (favoured attributes), among which was insistence on same-rank marriages.
In the 11th century CE, following the collapse of the Pala dynasty, a Hindu monarch, Adi Sura, introduced five Brahmins and their attendants from Kannauj, with the intention of providing education to existing Brahmins in the region, whom he perceived as uninformed, and to restore traditional orthodox Brahminical Hinduism. These Vedic Brahmins were expected to possess nine gunas (preferred characteristics), including a strong emphasis on same-rank marriages.