In the landmark case of Justice K.S. Puttaswamy
v. Union of India, the Supreme Court declared the "Right to Privacy" as a fundamental right under: 

In the landmark case of Justice K.S. Puttaswamy (Retd.) v. Union of India (2017), the Supreme Court of India unanimously declared that the right to privacy is a fundamental right. It is primarily protected as an intrinsic part of the right to life and personal liberty guaranteed under Article 21 of the Constitution of India. The Court also held that privacy is a part of the freedoms guaranteed by the other fundamental rights in Part III of the Constitution, including Article 14 (equality before law) and Article 19 (freedoms of speech, movement, etc.).