If you've misplaced your handset, one of the very first things you can do is disconnect your SIM card so that it can't be accessed by anyone. If you have a Reliance Jio SIM card, there are some options to block your SIM card. Reliance Jio helps you to disable your SIM card by calling the customer care, visiting the store or by using its website. Follow the instructions below to disable your Jio SIM.
Visit the Reliance Digital store - By going to the Reliance Digital store, you can get your Jio SIM barred. To get the SIM barred, you'll need to have identification with you.
Customer service - To have your Jio SIM disabled, contact Reliance Jio's customer support from any number and communicate with the JioCare service.