✅ 1. Justice K.S. Puttaswamy (Retd.) & Anr. v. Union of India (2017)
Case No.: Writ Petition (Civil) No. 494 of 2012
Citation: (2017) 10 SCC 1
Bench: 9-Judge Constitution Bench
Holding: Fundamental Right to Privacy = Part of Article 21.
This is the landmark privacy judgement.
✅ 2. K.S. Puttaswamy v. Union of India (Aadhaar Judgement – 2018)
Case No.: Writ Petition (Civil) No. 842 of 2017 & connected petitions
Bench: 5-Judge Constitution Bench
Citation: (2019) 1 SCC 1
Holding: Aadhaar upheld with restrictions; struck down private-sector use under Section 57.
This is the Aadhaar–privacy constitutionality judgement.
✅ 3. Earlier privacy cases overruled in Puttaswamy (2017)
These were explicitly overruled:
🔹 M.P. Sharma v. Satish Chandra (1954)
Citation: AIR 1954 SC 300
Held: No fundamental right to privacy.
Status: Overruled.
🔹 Kharak Singh v. State of UP (1962)
Citation: AIR 1963 SC 1295
Held: Article 21 does not include privacy.
Status: Overruled.
📌 4. After Puttaswamy (Right to Privacy applied in multiple cases)
🔹 Navtej Singh Johar v. Union of India (2018)
Citation: (2018) 10 SCC 1
Privacy used as foundation to strike down Section 377 IPC.
🔹 Joseph Shine v. Union of India (2019)
Citation: (2019) 3 SCC 39
Adultery law struck down; privacy + autonomy invoked.
🔹 Common Cause v. Union of India (2018) – Right to Die with Dignity
Citation: (2018) 5 SCC 1
Privacy + bodily autonomy used for Advance Directives.