1. Visit BSNL Portal by clicking this link.
2. Now you will see BSNL Dashboard. Click "Quick Recharge" option as shown in the image below.
3. Now fill the mobile number of which you want to check the balance and validity and click "Submit" button.
4. Now select the type of topup voucher and select the topup amount and "Submit" button.
5. That's it. Now you can see the the account balance and validity of the BSNL number you entered. Now close your browser without proceeding to the payment.
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