Justice K.S. Puttaswamy (Retd.) v Union of India

On 24 August 2017, a nine-judge Constitutional Bench of the Supreme Court delivered a unanimous verdict that transformed India's fundamental rights landscape: **the right to privacy is a fundamental right** under the Indian Constitution, protected primarily by Article 21. *Justice K.S. Puttaswamy (Retd.) v Union of India* is a judgment of extraordinary breadth and scholarly depth, with six separate concurring opinions. It overruled two older decisions — *M.P. Sharma v Satish Chandra* (1954) and *Kharak Singh v State of U.P.* (1963) — which had denied the existence of a constitutionally protected right to privacy.

Background & Facts

The immediate trigger for the case was the Aadhaar biometric identification system, which the Government of India was aggressively rolling out. Justice K.S. Puttaswamy, a retired Karnataka High Court judge, filed a writ petition challenging Aadhaar, arguing that the compulsory collection of biometric data (fingerprints, iris scans) violated the right to privacy. The Union of India's preliminary objection was categorical: there is no fundamental right to privacy in the Indian Constitution.

The Union relied on the eight-judge Bench decision in *M.P. Sharma* (1954) and the six-judge Bench decision in *Kharak Singh* (1963), both of which had held (or strongly implied) that privacy is not a fundamental right. These decisions had been decided when the Constitution was newly enacted and the jurisprudence was embryonic.

Given the conflicting views in earlier decisions and the importance of the issue, a nine-judge Bench was constituted to finally settle whether the Indian Constitution recognises a fundamental right to privacy.

Legal Issues

1. Is the right to privacy a fundamental right under the Indian Constitution?

2. If so, under which provisions — Article 21, or also Articles 14, 19, and other provisions?

3. Do the earlier decisions in *M.P. Sharma* (1954) and *Kharak Singh* (1963) correctly state the law?

4. What are the permissible limitations on the right to privacy?

Arguments

**Petitioner's Contentions:**

Justice Puttaswamy and other petitioners argued that privacy is intrinsic to human dignity and autonomy — values explicitly acknowledged in the Preamble and throughout the Constitution. The right to life under Article 21 cannot be read as a mere animal existence; it encompasses the right to live with dignity, which necessarily includes the right to be free from unauthorised surveillance, to control one's personal information, and to make intimate personal choices without State interference. The older decisions were decided without the benefit of the expansive jurisprudence that had developed around Article 21 since *Maneka Gandhi* (1978).

**Respondent's Contentions:**

The Attorney General argued that there is no enumerated right to privacy in the Constitution, and that the Court should not read unenumerated rights into the text. The earlier decisions of large Benches had settled the question. Privacy is a common-law right, not a constitutional fundamental right. Any protection for personal data or information can be provided by legislation; courts should not expand fundamental rights beyond their textual and historical foundations.

Judgment & Reasoning

All nine judges unanimously held that privacy is a fundamental right. The six concurring opinions, while reaching the same conclusion through different reasoning, converge on the following key principles:

**1. Right to Privacy is Fundamental:** Privacy is an intrinsic element of the right to life and personal liberty under Article 21. The right to privacy protects individual autonomy, dignity, and freedom — values that permeate the entire constitutional scheme. Privacy is not a gift of a statute; it is a natural right of every individual that the Constitution recognises and protects.

**2. Privacy Encompasses Multiple Dimensions:** Justice D.Y. Chandrachud's concurrence (the most expansive) identified several facets of privacy: bodily integrity, the sanctity of private spaces (home), decisional autonomy (personal choices about one's life, identity, and relationships), informational privacy (control over personal data), and communicational privacy. Each dimension is constitutionally protected against both State and non-State actors (the latter through legislative mandates).

**3. Overruling of M.P. Sharma and Kharak Singh:** Both prior decisions were overruled to the extent they held that there is no fundamental right to privacy in the Constitution. The Court noted that these decisions pre-dated the expansive interpretation of Article 21 inaugurated by *Maneka Gandhi* (1978) and did not engage with the full scope of constitutional values.

**4. Privacy is Not Absolute:** Privacy, like all fundamental rights, is subject to reasonable restrictions in the public interest. The State may intrude upon privacy when it satisfies a three-part test: (a) legality (the intrusion must be authorised by law); (b) legitimate aim (the law must pursue a legitimate State objective); and (c) proportionality (the means must be proportionate to the objective, and the least intrusive means should be preferred).

**5. Informational Privacy and Data Protection:** The judgment specifically recognised informational privacy — the right of individuals to control information about themselves — as a fundamental right dimension. This part of the ruling directly impacted data protection policy, eventually leading to the Digital Personal Data Protection Act, 2023.

Significance

**Overturning Old and Restrictive Precedents:** The overruling of *M.P. Sharma* and *Kharak Singh* removed the last constitutional obstacle to a comprehensive privacy framework in India. These decisions, decided in an era of limited rights consciousness, had long been anomalies in the otherwise expansive Article 21 jurisprudence.

**Impact on Aadhaar and Surveillance:** The ruling sent the Aadhaar challenge back for adjudication on merits. In *K.S. Puttaswamy v Union of India (Aadhaar case)* (2018), the Court upheld Aadhaar in modified form but struck down its extension to private entities, applying the proportionality test derived from the privacy judgment.

**Foundation for LGBTQ Rights:** The privacy judgment, particularly Justice Chandrachud's concurrence on decisional autonomy and sexual orientation, directly laid the groundwork for *Navtej Singh Johar v Union of India* (2018), which decriminalised consensual same-sex relations under Section 377 IPC.

**Data Protection Law:** The judgment explicitly called for a data protection framework, recognising informational privacy as a fundamental right. This culminated in the Personal Data Protection Bill debates and eventually the Digital Personal Data Protection Act, 2023.

Key Takeaways

- The **right to privacy is a fundamental right** under Article 21, and is also supported by Articles 14 and 19.

- Privacy encompasses bodily integrity, personal space, decisional autonomy, informational privacy, and communicational privacy.

- The right is **not absolute** — the State may restrict it when the restriction is lawful, pursues a legitimate aim, and is proportionate.

- *M.P. Sharma* (1954) and *Kharak Singh* (1963) were overruled to the extent they denied a fundamental right to privacy.

- The ruling had direct cascading effects on the Aadhaar litigation, LGBTQ rights (*Navtej Johar*, 2018), and data protection legislation.

---

*This article is for informational and educational purposes only and does not constitute legal advice. For specific legal matters, please consult a qualified advocate.*