In "Kesavananda", Justice Hans Raj Khanna propounded that the Constitution of India has certain "basic features" that cannot be altered or destroyed through amendments by the Parliament of India. Key among these "basic features", as expounded by Justice Khanna, are the fundamental rights guaranteed to individuals by the constitution. The doctrine thus forms the basis of the power of the Supreme Court of India to review and strike down constitutional amendments and acts enacted by the Parliament which conflict with or seek to alter this "basic structure" of the Constitution. The basic features of the Constitution have not been explicitly defined by the Judiciary, and the claim of any particular feature of the Constitution to be a "basic" feature is determined by the Court in each case that comes before it.