This document discusses various digital payment methods in India including payment gateways, Mobikwik, PayPal, Paytm, and Google Pay. Payment gateways securely process online payments between customers, online stores, and banks. Mobikwik is a mobile wallet that offers financial services like payments, transfers, insurance, and investments. PayPal is widely used for online transactions and sending/receiving payments. Paytm is India's largest mobile payment platform with over 200 million users that allows users to pay bills and book tickets/travel using its app. Google Pay is integrated with UPI and allows users to send/receive money between bank accounts using Android devices.