Demand raised for 'Self assessment tax' amount AY25-26

For AY25-26, self assessment tax of Rs.11740 was paid and returns was filed on Jul 16, 2025

Self assessment tax paid is reflected in Incometax portal and AIS.

However, got the demand notice for 11740.

How to reply for this.

I am not finding an option to tell that tax was paid under minor head 'Self-Assessment Tax (300)'

Please suggest.