Step 1: Understanding the Concept:
Supervisory jurisdiction refers to the power of a higher court to keep a watch over the functioning of subordinate courts and tribunals to ensure they act within their legal bounds.
Step 2: Detailed Explanation:
- Assertion (A): The power of superintendence is broad. It is not limited to just judicial interference (quashing orders) but also extends to administrative control (making rules for practice, prescribing forms, etc.). Thus, it is both judicial and administrative.
- Reason (R): Article 227(1) explicitly grants every High Court the power of superintendence over all courts and tribunals throughout the territories in relation to which it exercises jurisdiction.
- Relationship: The reason provides the constitutional source (Article 227) which defines the scope of the power. Since Article 227 encompasses both the power to correct legal errors (judicial) and regulate the conduct of business (administrative), R is the direct explanation for why A is true.
Step 3: Final Answer:
Both statements are correct, and the reason provided explains the nature of the assertion.