Published Paper Details:

In today's world, digital technology has become an integral part of people's daily lives.With the increasing dependance on the internet, smartphone, social media and online services personal information has now become an important asset. In this situation the question of privacy has emerged as not only a moral or social issue but also a method of constitutional right. Article 21 of the Constitution of India which guarantees the right to life and personal liberty has been expanded over time to judicial interpretation. The landmark judgement of the supreme court in the case of Justice KS Pattaswami vs. Union of India in 2017 is an important milestone in this evolution. A nine judge bench unanimously declared that privacy is a fundamental right to shrink in article 21 of the constitution. This judgement let the Constitutional foundation for the protection of citizens data in the digital era This paper analyzed the historical evolution of article 21, the need for privacy in the digital era, State surveillance, cyber security and the events of the digital personal data protection Act 2023. The conflict between personal freedom and national security is also discussed. The study seeks to show that privacy is an essential constitutional value for protecting human dignity in the digital era.