All Assam Matak Yuba Chatra Sanmilan on July 10 announced a 48-hour statewide economic blockade from July 18 in protest against the delay in granting Scheduled Tribe (ST) status to six indigenous communities of the state, reports The Telegraph. The six communities seeking ST status are the Tai Ahoms, Morans, Muttocks, Sutias, Koch Rajbongshis and the Adivasis.