The Supreme Court of India declared the 42nd Amendment, which gave parliament unfettered power to modify the constitution, to be unconstitutional in the Minerva Mills case . The case established the supremacy of the constitution over the parliament and the balance between fundamental rights and directive principles. Learn about the landmark case that upheld the basic structure of the Constitution and the power of judicial review in India. The case challenged the 42nd Constitutional Amendment Act, which altered the relationship between the judiciary and the executive. A landmark case of the Supreme Court of India that applied and evolved the basic structure doctrine of the Constitution. The court struck down clauses that enlarged the amending power of Parliament and limited the fundamental rights of individuals.