Background: The Supreme Court of India recently heard a petition challenging the Telecom Regulatory Authority of India's (TRAI) directive to telecom companies to provide call data records (CDRs) of subscribers to the government. The petitioners argued that this directive violates the fundamental right to privacy. Parties: The petitioners were a group of individuals and organizations, including the Internet Freedom Foundation, while the respondents were the Union of India and TRAI. Legal issues: The main issue before the court was whether the collection and storage of CDRs by telecom companies and their subsequent sharing with the government violates the right to privacy under Article 21 of the Constitution. Court observations: The Supreme Court observed that the right to privacy is a fundamental right and that the collection and storage of CDRs by telecom companies and their sharing with the government must be regulated by a law that provides adequate safeguards to protect the privacy of individuals. The court also noted that the TRAI directive did not provide sufficient safeguards and was therefore unconstitutional. Significance: The judgment is significant as it upholds the right to privacy in the context of telecom data and emphasizes the need for regulatory frameworks that protect individual privacy. The judgment will have implications for the telecom industry and the government's ability to collect and use personal data.