India has eased restrictions on its Aadhaar authentication service, a digital identity verification framework linked to the biometrics of over 1.4 billion people, to let businesses including those offering services such as e-commerce, travel, hospitality, and healthcare use the verification system to authenticate their customers. The update has raised privacy concerns as New Delhi has yet to define the guardrails it would consider to avoid misuse of individuals’ biometric IDs. On Friday, the Ind...