how the counsiling process is done for NATA.......whether 12th mark will be considered

Hello !
The participating institute of nata conduct separate counselling section.
To be eligible for counselling conducted by these institutes one needs to qualify nata 2019. In other words the candidates also have to meet the aggregate and also component wise minimum marks determined for the exam.
Each institute is free to decide their own counselling norms. So the mode and the process may vary from one institute to another .
For further details kindly refer to the link given below
https://www.google.com/amp/s/engineering.careers360.com/articles/nata-counselling
Hope this helps
Thank you!

The Council of Architecture (COA), which is the exam conducting body, doesnt conduct counselling of NATA. Instead, candidates have to apply in the desired institute among the participating institutes separately based on their NATA scores for admission to B.Arch course. To be eligible for participation in NATA 2019 counselling, candidates have to score the minimum cutoff marks in the two individual components and also in aggregate. Additionally, theNATAapplicant would also have to meet all the other eligibility criteria specific to the institute. Again, since there is no centralized counselling of NATA 2019, there is no uniformity in the counselling processes adopted by these institutes. Go through the rest of the article to learn the full details of NATA counselling 2019.

https://www.google.com/amp/s/engineering.careers360.com/articles/nata-counselling