Examine how the separation of powers is practised in India compared to the rigid presidential model of the United States of America. In this context, compare the actual authority of the Indian Prime Minister with that of the President of the USA.

Two conceptions

The United States applies a rigid separation: Articles I, II and III vest legislative, executive and judicial power in three separately constituted branches, and no person may serve in two at once. India applies a functional separation: the Constitution never uses the phrase, and the executive is drawn from and answerable to the legislature. What India protects is not institutional separateness but the independence of the judiciary and the non-usurpation of essential functions.

How India practises it

• Article 50 directs the state to separate the judiciary from the executive, but it is a Directive Principle, not enforceable.
• The Council of Ministers must be members of Parliament (Article 75(5) allows six months' grace), so the executive sits inside the legislature.
• Legislative power is exercised by the executive through ordinances (Article 123), delegated legislation and Money Bill classification.
• Judicial functions are exercised by the executive through tribunals and quasi-judicial bodies.
• The judiciary legislates in effect through Article 142 and guidelines-pending-statute, as in Vishaka and the living-will cases.
• Kesavananda Bharati (1973) and Indira Nehru Gandhi (1975) made separation of powers part of the basic structure, so essential functions cannot be transferred even by amendment.

How the US practises it

• Fixed four-year presidential term; the President is not removable for losing a legislative vote, only by impeachment.
• The Cabinet is not drawn from Congress and requires Senate confirmation.
• Checks operate across branches: presidential veto, congressional override by two-thirds, Senate ratification of treaties and confirmation of judges, and judicial review since Marbury v. Madison.
• Divided government — a President of one party facing a Congress of another — is normal and produces gridlock by design.

Prime Minister versus President: actual authority

• Legislative control. The Indian PM, commanding a majority, effectively controls the legislative agenda; the anti-defection law makes party discipline enforceable. A US President has no such control and may see his programme blocked entirely.
• Tenure security. The US President's term is fixed; the PM survives only while the majority holds. In a coalition, that is a real constraint; with a single-party majority, it is not.
• Cabinet authority. US Cabinet secretaries serve at the President's pleasure and have no independent political base. Indian ministers are politicians with constituencies and, in coalitions, party leverage.
• Appointments and treaties. The US President needs Senate confirmation for senior appointments and two-thirds for treaty ratification. The Indian PM needs neither; treaties do not require parliamentary ratification.
• Emergency and ordinance power. The Indian executive can legislate by ordinance when Parliament is not in session; the US President cannot.

The paradox: a US President is styled the most powerful office in the world yet is heavily constrained domestically, while an Indian Prime Minister with a working majority faces fewer internal checks but is structurally more removable.

Conclusion

India practises separation as a functional restraint enforced mainly by the judiciary; the US practises it as a structural one enforced by rival branches. Each carries its characteristic pathology: gridlock there, executive dominance of the legislature here. Our note on judiciary versus executive traces the Indian version of the tension, and the parliamentary system covers the fusion that makes it distinctive.