Hello aspirant 

Congratulations for qualifying the NATA exam. Nata 2019 counselling has not started yet. But procedure of counseling is as first you have to register yourself for counseling and pay the fee of it. Then there are around 477 institutions under Nata, choice filling will be done . And according to your eligibility, you can secure your seat 

For more information you can go through this link 

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

Good Luck. 

Dear Alekhya, COA doesn’t conduct admission counselling. It is only responsible for conducting NATA, which is the qualification exam for admission to B.Arch course. The participating institutes of NATA conduct separate counselling sessions.Each institute is free to decide their own counselling norms, so the mode and process may vary from one institute to another. For example, apart from the eligibility criteria prescribed by COA, the candidate will also have to meet any additional eligibility criteria that the institute may demand.

The declaration of result for second attempt will be on 21st July, 2019. So, the counselling dates hasn't been declared. You can wait till the result comes.

All the best 

Hope this helps