Hii aspirant..

CoA (Council of Architecture) will not hold any common counselling. It is only responsible for conducting NATA Exam. All the participating institutes will individually conduct counselling based on NATA scores for admissions. Each institute will have its own counselling procedure. Candidates have to visit the official website of their preferred college to know about the counselling process.

Eligibility for NATA Counselling

Candidates who will qualify NATA will be eligible to participate in NATA Counselling. But, there are other standards that need to be satisfied before appearing for the counselling and final admissions.  It is important to score minimum qualifying exam in NATA exam. The minimum qualifying marks in the exam are 50 out of 200. 

Candidate needs to undergo NATA 2019 Counselling Process for a particular university he/she wishes to apply in. During the Counselling, a candidate is required to register and fill the choice of seats. Once the filling of choices is completed, the document verification process will start. 

Visit the link to know more about it -

https://engineering.careers360.com/articles/nata-counselling

Hope it helps. 

Best of luck.