What is the rationale behind this amendment according to the text provided?
The rationale behind this amendment, as stated in the text provided, is to clarify and define the legislative powers of the National Capital Territory's Legislative Assembly. According to the provisions outlined in (a), the Assembly can make laws for the entire or part of the territory with respect to matters enumerated in the State List or Concurrent List, excluding certain specific entries. However, this power is subject to the authority of Parliament to enact laws for Union territories. Sub-clause (b) emphasizes that the Legislative Assembly's powers do not supersede those of Parliament, and sub-clause (c) addresses situations where there is a conflict between a law made by the Assembly and one made by Parliament or an earlier law; in such cases, the Parliament's law prevails. The first proviso allows for exceptions when the President has considered and assented to a law made by the Legislative Assembly, and the second proviso ensures that Parliament can continue to make laws on the same matter even after the Legislative Assembly has done so.