Short note: Judicial review:
Judicial review means that jurisdiction of the court. In constitutional supremacy court has power to declare any law passed by parliament unconstitutional, void or illegal. Only Supreme Court of the country can exercise that power.
The doctrine of judicial review may for the convenience of research and study in constitutional and administrative law be used in two senses ---
1. Doctrine of judicial review in the sense of constitutional supremacy or sovereignty.
2. Doctrine of judicial review in the sense of parliamentary supremacy or sovereignty.
What are the parliament says or passed that is not final. Court will examine because court have review power. This concept comes from America and introduced in case Marbwrry v. Madison case 1803.