Step 1: Understanding the case.
Section 66A of the Information Technology Act, 2000, which criminalized offensive online content, was struck down by the Supreme Court in the case of Shreya Singhal Vs Union of India (2015). The Court held that the section was unconstitutional as it violated the right to freedom of speech and expression under Article 19(1)(a) of the Constitution.
Step 2: Explanation of the options.
- (a) Justice K. S. Putta swamy Vs Union of India: This case dealt with the right to privacy, not Section 66A of the IT Act.
- (b) M P Sharma Vs Satish Chandra: This case was related to the right to privacy and not Section 66A.
- (c) Shreya Singhal Vs Union Of India: This is the correct answer, as it was this case in which the Supreme Court declared Section 66A of the IT Act unconstitutional.
- (d) Gagan Harsh Sharma Vs The State of Maharashtra: This case is unrelated to Section 66A.
Step 3: Conclusion.
Thus, the correct answer is (c) Shreya Singhal Vs Union Of India.