Log in to your bank or post office internet banking account linked to the Sukanya Samriddhi Account
Open the account summary or deposit account section
Select the Sukanya Samriddhi Account
View the available balance and transaction details
If internet banking is not available, use the mobile banking app if your bank supports it
Check the passbook details through the official post office or bank portal if linked
Contact the branch or post office for online balance inquiry support if needed