Can the President make these changes without any limitations?
No, the President cannot make these changes without any limitations. The changes are made under specific acts and amendments mentioned in the context provided, such as the Constitution (Fourteenth Amendment) Act, 1962, Pondicherry (Alteration of Name) Act, 2006, State of Mizoram Act, 1986, and State of Arunachal Pradesh Act, 1986.