NEW DELHI: The Supreme Court on Wednesday struck down the Section 57 of the Aadhaar Act which allowed sharing of data with private entities.A 5-judge bench of the apex court was passing its judgement on the constitutional validity of Aadhaar, challenged by 31 petitions on the grounds that it violated the right to privacy of citizens.The court's judgement means that private bodies like telecom companies, e-commerce firms, private banks and other such firms cannot ask for biometric and other data from consumers for their services.Besides striking down Section 57, SC also said that the Centre must bring a robust data protection law urgently.