 There is a limitation on the power of amendment by necessary implication which was apparent from a reading of the preamble and therefore, according to the learned Chief Justice, the expression 'amendment of this Constitution,' in Article 368, means any addition or change in any of the provisions of the Constitution within the broad contours of the preamble, made in order to carry out the basic objectives of the Constitution.Accordingly, every provision of the Constitution was open to amendment provided the basic foundation or structure of the Constitution was not damaged or destroyed.Held that the preamble to the Constitution contains the clue to the fundamentals of the Constitution.