Can an existing Union Territory be altered in size or name according to Article 3?
Yes, an existing Union Territory can be altered in size or name according to Article 3. The Explanation I in the article states that "State" includes a Union territory for the purposes of clauses (a) to (e). This means that the power conferred on Parliament by these clauses, which includes forming a new State or Union territory by uniting a part of any State or Union territory to any other State or Union territory, can also apply to altering the size or name of an existing Union Territory.