Tangsa is one of the schedule tribe of Arunachal Pradesh which have 26 (twenty six) major Sub-tribes. Among this Tangsa tribe Rëra (Ronrang) is one of the sub –tribe of Tangsa. Presently, Rëras are found in Changlang District of Arunachal Pradesh and in some pockets of Assam especially in Tinsukia District.
The traditional knowledge of Rëra culture is passing through orally from our fore fathers from generation to generations which are a great achievement of our forefathers lest our identity and culture would have been extinct to nowhere.