How to do UPI payment without internet in jio sim?

You can make UPI payments without the internet using the *99# USSD service. Dial *99# from your mobile number linked to your bank account. An interactive menu will appear, allowing you to select options like "Send Money." Follow the on-screen prompts to enter the recipient's details, the amount, and your UPI PIN to complete the transaction securely. This feature works on any mobile phone, including basic feature phones.