A Payment Gateway (such as Razorpay, Cashfree, PayU, or Stripe) is the secure intermediary software connecting your e-commerce storefront with consumer banks and card networks (Visa, Mastercard, RuPay, NPCI). When a buyer enters payment credentials at checkout, the gateway encrypts sensitive financial data via 256-bit SSL, initiates 3D-Secure 2-factor OTP verification, authorizes fund capture, and settles net proceeds into the merchant’s bank account within T+1 to T+2 business days.
The UPI Revolution in Indian E-Commerce Checkouts
In India, online checkout behavior is uniquely dominated by UPI (PhonePe, Google Pay, Paytm, and CRED). Modern payment gateways provide "UPI Intent Flow" on mobile browsers: when the customer selects UPI, their smartphone instantly opens their preferred UPI app with the exact amount pre-filled.
The customer authenticates with their biometric fingerprint or UPI MPIN in under 10 seconds. Stores offering seamless UPI intent flows experience payment success rates exceeding 92%, compared to legacy credit card checkouts that frequently fail during bank SMS OTP delivery delays.
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