See the document verification for the State Counselling is between 21 to 25th January,2022. Its expected that the document verification will be slotted and as per your slot you have to visit for the Verification. So wait for the notice (if any), if there are no notices regarding that, then its intuitive that you can do your verification in any of the dates in the range given.

To know more about the UP NEET counselling, visit the link below:

https://medicine.careers360.com/articles/up-mbbs-counselling

I hope this answer helps. All the very best for your future endeavors!