Judicial review is the power of judiciary to examine the constitutionality of legislative enactments and executive orders of both the Central and state governments. On examination, if they are found to be violative of the Constitution (ultra-vires), they can be declared as illegal, unconstitutional and invalid (null and void). The constitutional validity can be challenged on three grounds: (a) it infringes the fundamental rights (Part III), (b) it is outside the competence of the authority which has framed it, and (c) it is repugnant to the constitutional provisions.