Hello Purvi,

Following JEE Main, the National Aptitude Test in Architecture (NATA) is also set to be conducted twice a year from this academic session onward. The first attempt will be held around mid-April, while the second and final attempt will be held in the first week of July. Candidates have the choice to appear in one or both the attempts.

You will have to register for each exam separately. The last date of registration for First Test to be held in April is 11th March 2019 and for the second test to be held in July is 12th June 2019. 

Hope this helps.