Hi Shaily Gupta!

For any architecture college, NATA exam will be given the first preference and after that JEE MAINS paper 2 will be given preference. And depending upon both the scores they will consider either of the two exams.

And YES, they will accept the second round of NATA.

For more information, you check out the website mentioned below:

https://www.shiksha.com/architecture-planning/nata-exam

I hope this information is helpful for you!

All the Best!