The Supreme Court, on March 24, 2015, struck down Section 66 A of the Information and Technology Act, which allows police to arrest people for posting “offensive content” on the internet. The bench said the public's right to know is directly affected by Section 66 A and the Section clearly affects the right to freedom of speech and expression enshrined under the Constitution of India.
Here's the >full text of the SC judgement on Section 66A of the Information and Technology Act.