Union Territories & Panchayats
(1) The President may make regulations for the peace, progress and good government of the Andaman and Nicobar Islands, Lakshadweep, and Dadra and Nagar Haveli and Daman and Diu (and formerly Puducherry, until it got its own Legislature under Article 239A) - though once a UT gets an elected Legislature under Article 239A, the President stops making regulations for it (resuming only if that Legislature is later dissolved or suspended). (2) Such a regulation can repeal or amend a Parliament Act applicable to that territory, and has the same force as a Parliament Act once promulgated.
For Union Territories that don't have their own elected Legislature, the President can directly make binding "regulations" that function just like laws passed by Parliament - a much more direct and centralised form of law-making than exists for any State, reflecting these territories' fully centrally-administered status.
This is why a Union Territory without its own Legislature (like the Andaman and Nicobar Islands) can have its laws made directly by presidential regulation, rather than going through an elected local legislature or even needing full debate in Parliament each time.