This document contains the Supreme Court of India's judgment in the PUCL vs UOI case concerning telephone tapping. It addresses the invasion of privacy through sophisticated technology and the constitutional validity of Section 5(2) of the Indian Telegraph Act. The judgment discusses the right to privacy as a fundamental right under Article 21 and establishes procedural safeguards to prevent arbitrary telephone tapping. It is essential reading for legal professionals, civil rights advocates, and anyone concerned about privacy in the digital age.