Original sentence: He is said to have chosen to purge traditional knowledge systems by banishing their ancient manuscripts (puyas) to a fire.Puya Meithaba is a legendary event in Manipur's folk history, wherein the Puyas (ancient traditional texts) are said to have been burnt after the Manipur's king Gharib Nawaz converted to Vaishnavism
Edited sentence: It is also popularly accepted that the practice of untouchability or caste system which Meitei call it "amang aseng" (pure or impure) also took root in Manipur since then.Popular accounts in Manipur mention that Gharib Nawaz, after his conversion to Vaishnavism, chose to purge traditional knowledge systems by banishing their ancient manuscripts (puyas) to a fire.Puya Meithaba which literally mean burning of Puyas is an event that took place in Manipur Kingdom during the reign of monarch Pamheiba, but the exact date and number of puyas burnt are often contested and controversial in a sense