Rectify or Revise the return for tax demand

Hello

I got a tax demand because CPC couldn't find my challan number. There was a small mistake in my challan number it looks like. I have 2 options:

1. revise the return with correct challan and disagree with outstanding demand

2. rectify the return and disagree with outstanding demand

Which is better? In which option the return will get processed by CPC itself and which option the return will go to an assessing officer?

I just want it to get processed quickly.

Thanks