6. The Federal Legislature may by an Act, with the consent of the Legislature of the Province or Provinces concerned and the Legislature or any other duly constituted authority of the Federated State affected thereby,
(a) create a new Administrative or Federating Unit;
(b) increase the area of any Unit;
(c) diminish the area of any Unit;
(d) alter the boundaries of any Unit ;
(e) create a Sub-Federation or Union for specific purposes;
(f) attach a Unit or Sub-Unit to another Unit or Sub-Unit for specific purposes;
(g) amalgamate a number of small Units or Sub¬Units into an administrative zone or district; and may with the like consent make such incidental consequential provisions as it may deem necessary or proper.