Strong Customer Authentication for Payments in India: Razorpay’s Domestic and International Card Flows

Strong customer authentication verifies a payer through multiple independent factors. For an Indian merchant, the practical question is: which authentication does my payment flow support, and what additional security layers are available for a high-risk transaction? Razorpay documents 3DS2 for international card payments, alongside separately scoped domestic checkout features, tokenised saved cards and fraud controls.