How can I get into NIT Trichy with my NATA score for pursuing a B.Arch?

Apparently, NITs do not generally accept NATA scores for B.Arch admissions. On the flip side, what they do consider is admission via Joint Seat Allocation Authority, abbreviated to JoSAA, which is basically the acceptance on the basis of JEE Mains for B.Arch, via paper-2. Besides, it also partially depends whether or not you are from the home state. 

If you have appeared for the JEE B.Arch paper 2 examination, then you can apply for the Joint Seat Allocation Authority (JoSAA), the dates of which can be known through the online panel as per the authorities.

You can check the cut offs of NIT Trichy as was proclaimed in the previous years’ for home state students, alongside those from other states as well. However, your JEE Mains score is considered too and shall be at least above 200, for further selection.