SIX communities of Assam — Koch Rajbongshi, Tai Ahom, Moran, Matak, Chutia and the tea-tribes/Adivasi — have been agitating for decades for Scheduled Tribe (ST) status. The Koch Rajbongshi movement assumed an organised political form as early as 1968–69, and has continued for nearly six decades. The demands of Moran and Matak communities are even older, going back to 1947.