Article 21

A detailed analysis of Article 21 — the constitutional foundation of privacy rights in India.

The Text of Article 21

Article 21 states: "No person shall be deprived of his life or personal liberty except according to procedure established by law." This deceptively simple text has been the foundation for an extraordinarily broad range of rights, including privacy.

The key phrases in Article 21 are "life" and "personal liberty." The Supreme Court has interpreted both expansively. "Life" does not mean mere animal existence — it means a life of dignity, with all the rights necessary for a meaningful human life. "Personal liberty" is not limited to freedom from physical restraint — it includes many other freedoms.

Judicial Interpretation

The Supreme Court has progressively expanded the scope of Article 21. This expansion has been a defining feature of Indian constitutional law. Here are some key milestones:

Maneka Gandhi v. Union of India (1978)

This landmark case transformed Article 21. The Court held that "procedure established by law" must be fair, just, and reasonable — not just any procedure. This introduced the concept of substantive due process into Indian law. After Maneka Gandhi, Article 21 became a broad source of rights.

Post-Maneka Gandhi Expansion

• • Right to privacy
• • Right to dignity
• • Right to a clean environment
• • Right to food
• • Right to education
• • Right to shelter
• • Right to health
• • Right to speedy trial
• • Right to legal aid
• • Right to livelihood

This expansion reflects the Court's view that Article 21 is the "heart" of the Constitution — a source of rights that Parliament cannot take away. The right to privacy is one of the most important of these derived rights.

Privacy Under Article 21

The right to privacy has been recognised under Article 21 in several landmark cases. These cases have established that privacy is an essential component of personal liberty.

Kharak Singh v. State of U.P. (1964)

In this early case, the Supreme Court considered whether police surveillance violated Article 21. One judge (Subba Rao J.) argued that privacy is part of personal liberty, but the majority held that Article 21 did not include privacy. This view was later overruled.

Gobind v. State of M.P. (1975)

Justice Mathew recognised privacy as part of Article 21 for the first time. He held that privacy is essential to human dignity and cannot be deprived without a fair procedure. However, this was a concurring opinion, not the majority view.

PUCL v. Union of India (1997)

The Supreme Court held that telephone tapping violates privacy under Article 21 unless done according to a fair procedure. This case consolidated privacy as an aspect of Article 21.

K.S. Puttaswamy v. Union of India (2017)

A nine-judge bench of the Supreme Court unanimously held that privacy is a fundamental right under Article 21. This decision settled decades of debate and established privacy as a core constitutional value.

The Three-Pronged Test

The Puttaswamy judgment established a three-pronged test for determining whether a privacy violation is justified. Any state action that restricts privacy must pass all three prongs:

• • Legality: The restriction must be backed by a valid law
• • Necessity: The restriction must be necessary for a legitimate purpose
• • Proportionality: The restriction must be proportionate to the goal, with no less restrictive alternative

This test is now the standard for evaluating privacy-restricting state action. It ensures that privacy is not violated arbitrarily — only when necessary and proportionate.

The three-pronged test has implications for the DPDPA. When the government restricts privacy through the Act, it must satisfy this test. When private parties restrict privacy, the Act's own provisions — like consent requirements — must align with the constitutional framework.