You have to register in tneb online bill payment website to view the previous month bill details.
- Go to tneb official bill payment website. https://www.tnebnet.org/awp/login
- Complete the registration process using any one service number.
- You can add additional service numbers to a single account.
- Once you added the service number, go to the home page and click account summary .
- Select the tneb service number from the list.
- Complete information about your TNEB service number like previous month bill details, units consumed etc will be displayed.