Step 1: Right to Privacy Case Overview.
- The Supreme Court of India, in K S Puttaswamy vs. Union of India (2017), affirmed the right to privacy as a fundamental right under Article 21 of the Indian Constitution. This decision overturned prior rulings that did not recognize privacy as a fundamental right.
Step 2: Option Evaluation.
- (A) K S Puttaswamy vs. Union of India: Correct. The Supreme Court established the Right to Privacy as a fundamental right in this case.
- (B) Joseph Shine vs. Union of India: Incorrect. This case addressed the decriminalization of adultery, not the right to privacy.
- (C) National Legal Services Authority vs. Union of India: Incorrect. This case concerned the rights of transgender individuals, not privacy.
- (D) Suresh Kumar Kaushal vs. Naz Foundation: Incorrect. This case pertained to the legality of Section 377 regarding homosexuality, but it did not directly concern the fundamental right to privacy.
Step 3: Answer.
Therefore, the correct choice is (A) K S Puttaswamy vs. Union of India.