How the Right to Privacy Became Part of Article 21 — and What It Means Today

From two judgments that denied any constitutional right to privacy to a nine-judge Bench that declared it intrinsic to life and liberty, the doctrine's journey explains why data protection, surveillance and bodily autonomy cases now turn on Article 21.

Contemporary explainers trace how the right to privacy entered Indian constitutional law in three phases: two early Supreme Court decisions (an eight-judge Bench in the 1950s on search-and-seizure, and a six-judge Bench in the 1960s on police surveillance regulations) held there was no distinct fundamental right to privacy under Part III. Smaller Benches later gave narrow, fact-specific protection in areas like prisoners' rights, personal confidentiality, and telephone tapping, without disturbing this precedent. Finally, a nine-judge Bench in 2017, examining the Aadhaar scheme's validity, declared privacy an intrinsic part of Article 21 and overruled the earlier judgments.

The doctrine rests on reading "personal liberty" in Article 21 expansively to cover bodily autonomy, informational self-determination, and freedom from surveillance, subject to a "procedure established by law" that is fair, just and reasonable. Articles 14 and 19 combine with Article 21 as a "golden triangle" test for proportionality, while Articles 32 and 226 provide enforcement, Article 12 defines the "State" against whom claims lie, Article 13 voids inconsistent laws, and Article 141 let the 2017 Bench bind all courts by overruling prior precedent.

For exams: remember the sequence of precedent — 1950s and 1960s rulings denying privacy, followed by the 2017 nine-judge Bench (arising from the Aadhaar case) recognising it as part of Article 21, and the interplay of Articles 12, 13, 14, 19, 21, 32, 141 in privacy litigation.