Correct Option
The separation of the judiciary from the executive is explicitly mandated by Article 50 of the Directive Principles of State Policy (DPSP) in Part IV of the Indian Constitution. Article 50 states that "The State shall take steps to separate the judiciary from the executive in the public services of the State." This provision aims to ensure the independence of the judiciary and prevent executive influence or overreach, particularly at the level of lower courts and magistrates. Although DPSPs are not directly enforceable by courts, they are considered fundamental in the governance of the country and guide the State in making laws and policies.
Incorrect Options
Option (a): The Preamble of the Constitution outlines the objectives of the Constitution, including securing justice (social, economic, and political). However, it does not explicitly mention the separation of the judiciary from the executive as a specific directive or principle.
Option (c): The Seventh Schedule of the Constitution deals with the distribution of legislative powers between the Union and the States through the Union List, State List, and Concurrent List. It does not address the principle of separation of judiciary from the executive.
Option (d): While conventional practices may reinforce the separation of powers, the principle of separation of judiciary from the executive in India is not merely a conventional practice. It has a clear constitutional basis enshrined in Article 50, making it a Directive Principle of State Policy rather than solely a convention.