ITR rectification for demand issue, which section to select

Dear Sir/Mam,

This is with regards to intimation u/s 143(1) that I have received for a demand to pay tax for AY 2020-21
I have already paid the asked amount as self-assessment tax while filing ITR, however forgot to put challan details during that time. Later, mistakenly I had selected 'Demand is correct' under worklist for me for this demand.

Now, I have reached out to the call center service for ITR and they suggested me to file Rectification via X M L.

I am doing it, however, there is one field that requires me to select filed u/s and the call center team suggested to select 139(1) over there as my original submission of ITR was before the due date.
But this added Rs. 10,000 as 'Fee u/s 234F'. When I called back the call center team, they asked me to manually remove this amount and make it Rs.0

I can do that, but I am not sure if I should follow this. Can you please help what to do in this case?

Thanks,
Varun