If it's showing that you are not eligible for the counseling process than it may be due to your poor rank or you may not satisfying the eligibility criteria as required.
Here, try for the link. Below to know counseling process for b.arch and it's eligiblity criteria.
https://www.google.com/amp/s/engineering.careers360.com/articles/upsee-barch/amp

Also, visit the official website to get detailed information.
https://upsee.nic.in

Uttar Pradesh Combined Entrance Examination

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