Open the MyJio app
Sign in with your Jio number
Check the data balance on the home screen
Dial 1299 from your Jio number
Use the Jio USSD code if available in your region
Send an SMS with BAL to 199
Check your data usage in the MyJio app under usage details
Visit the Jio website and log in to your account
Use the Jio data balance section in your account dashboard