Right to Privacy under Article 21 in the Digital Era: Constitutional Challenges and Prospects

The evolution of the right to privacy in India, from an implied constitutional concept to a recognized
fundamental right, reflects the dynamic interplay between law, technology, and human dignity. In the
digital era, where personal information is incessantly generated, tracked, and monetized, the protection of
individual privacy faces unprecedented challenges. This paper critically examines the contours of the
right to privacy under Article 21 of the Indian Constitution, especially in the wake of the Supreme Court’s
landmark Justice K.S. Puttaswamy v. Union of India (2017) judgment, which elevated privacy to the status
of a fundamental right. It explores how technological advancements—ranging from state surveillance,
artificial intelligence, and social media profiling to large-scale data analytics—have blurred the
boundaries between public and private life. Through a doctrinal and analytical approach, supported by
recent case studies such as the Aadhaar litigation, Pegasus spyware controversy, and the implementation
of the Digital Personal Data Protection Act, 2023, this research evaluates the constitutional, ethical, and
legal dimensions of privacy in India. The study argues that while judicial pronouncements have laid a
robust foundation, the absence of a comprehensive enforcement mechanism and unchecked digital
surveillance continue to endanger informational autonomy. Finally, it proposes a rights-based,
technology-neutral, and citizen-centric framework to harmonize innovation with privacy protection,
ensuring that India’s digital transformation remains consistent with constitutional morality and human
dignity.