Explanation:

The Union Territories of Puducherry (in 1963) and Delhi (in 1992) are provided with a legislative assembly and a council of ministers headed by a chief minister.
The remaining five union territories do not have such popular political institutions. But, the establishment of such institutions in the union territories does not diminish the supreme control of the President and Parliament over them.
Creation of UNION TERRITORIES
During the British Rule, certain areas were constituted as ‘scheduled districts’ in 1874. Later, they came to be known as ‘chief commissioners provinces’. After independence, they were placed in the category of Part ‘C’ and Part ‘D’ states . In 1956, they were constituted as the ‘union territories’ by the 7th Constitutional Amendment Act (1956) and the States Reorganisation Act (1956). Gradually, some of these union territories have been elevated to statehood.
Thus, Himachal Pradesh, Manipur, Tripura, Mizoram, Arunachal Pradesh and Goa, which are states today were formerly union territories. On the other hand, the territories that were acquired from the Portuguese (Goa, Daman and Diu, and Dadra and Nagar Haveli) and the French (Puducherry) were constituted as the union territories