Arguing that indiscriminate exploitation of mineral resources was leading to alienation amongst local tribal populations and furthering the cause of Naxalite groups, Minister for Tribal Affairs V Kishore Chandra Deo has advocated a ban on export of raw materials like iron ore or bauxite. Mineral resources like iron ore should be declared "national wealth" and their use must be regulated in the larger interest of the country, Deo said in an interview.