Kerala became the first State to join citizens across the country’s spectrum to challenge in the Supreme Court the constitutionality of the Citizenship (Amendment) Act (CAA)
From Prelims point:
Article 131
Article 131 vests the Supreme Court with original jurisdiction over any dispute arising between the states or between the centre and state. The article gives the Supreme Court the power to take up such cases straight instead of going through a lower court or reviewing a lower court’s judgement.
The first judgment reported in 2012 – State of Madhya Pradesh vs Union of India – held that States cannot challenge a central law under Article 131
Article 256 in The Constitution Of India (Obligation of States and the Union):
The executive power of every State shall be so exercised as to ensure compliance with the laws made by Parliament and any existing laws which apply in that State, and the executive power of the Union shall extend to the giving of such directions to a State as may appear to the Government of India to be necessary for that purpose.