The Supreme Court invalidated the practice of instantaneous triple talaq (also known as talaq-e-bid'ah) in the case of Shayara Bano vs Union of India (2017). The Court declared that the practice violated the fundamental rights of Muslim women under the Indian Constitution, specifically Articles 14 (right to equality) and 21 (right to life and personal liberty). The decision led to the enactment of the Muslim Women (Protection of Rights on Marriage) Act, 2019, which made the practice of instant triple talaq a criminal offense.