Step 1: Understanding the evolution of the Right to Privacy.
The right to privacy was not explicitly mentioned in the Constitution, but has been judicially interpreted over time.
Step 2: Evaluating all four cases.
- M.P. Sharma (1954): The Court held that the Constitution does not recognise a general right to privacy.
- Kharak Singh (1963): The Court struck down nighttime surveillance and hinted at privacy as part of personal liberty.
- PUCL (1997): Recognised privacy in the context of telephone tapping.
- Puttaswamy (2017): Declared privacy as a fundamental right under Article 21.
Step 3: Final conclusion.
All four judgments are connected to the legal development of the right to privacy.