e-payment (electronic payment) can indeed be done through UPI (Unified Payments Interface). UPI is a real-time payment system developed by the National Payments Corporation of India (NPCI) that facilitates inter-bank transactions through mobile phones.

With UPI, users can make payments directly from their bank accounts to merchants, individuals, or other bank accounts, using mobile apps like PhonePe, Google Pay, Paytm, BHIM, and others. UPI allows for easy and secure peer-to-peer or business-to-consumer transactions, and is widely used for various types of payments, including:

• Bill payments
• Online shopping
• Money transfers
• QR code-based payments
• Person-to-person transactions

It is one of the most popular methods of e-payment in India and has gained significant adoption due to its simplicity, speed, and security.