What are the alternatives to debit cards for UPI

Alternatives to using a debit card for UPI authentication are becoming available through select banks and applications. Users can set up their UPI PIN using Aadhaar-based verification, which utilizes an OTP sent to the mobile number linked to their Aadhaar card. Additionally, a UPI-linked RuPay Credit Card can be used for payments directly via UPI, even without a separate bank account, as supported by applications like Paytm.