3.In accordance with the provisions of article 342, the Constitution (Scheduled Tribes)
•Order, 1950 relating to list of Scheduled Tribes of various States was initially notified on the
•6th September, 1950. The list of Scheduled Castes and Scheduled Tribes for Arunachal
•Pradesh (then part of the State of Assam, and known as North-East Frontier Agency) was
•promulgated for the first time, vide the Scheduled Castes and Scheduled Tribes Lists
•(Modification) Order, 1956. Further, the list of Scheduled Tribes of Arunachal Pradesh has
•been modified through the North Eastern Areas (Reorganisation) Act, 1971, the Scheduled
•Castes and Scheduled Tribes Orders (Amendment) Act, 2002, the Constitution (Scheduled
•Tribes) Order (Amendment) Act, 2008 and the Constitution (Scheduled Tribes) Order
•(Amendment) Act, 2011.