Union executive power to direct state schemes for Scheduled Tribes' welfare affirmed, enabling presidential commission appointment. The President may appoint a Commission to report on the administration of Scheduled Areas and the welfare of the Scheduled Tribes, with the order defining the Commission's composition, powers and procedure and containing incidental provisions. The Union's executive power extends to giving directions to a State as to the drawing up and execution of schemes deemed essential for the welfare of Scheduled Tribes in the State.