As you have asked about the NATA exam theory syllabus, I am giving you information about it, check below for the details

NATA Syllabus

Test- I :NATA AESTHETIC SENSITIVITY TEST

Aesthetic Sensitivity is to evaluate candidate’s perception, imagination and observation; creativity and communication; and Architectural awareness.
The test shall be of objective type and comprise of topics related to,

(i) Visualizing three dimensional objects from two dimensional drawings.
(ii) Visualizing different sides of three dimensional object.
(iii) Analytical Reasoning.
(iv) Mental Ability
(v) Imaginative comprehension and expression
(vi) Architectural awareness

Test- II:NATA DRAWING TEST

The Drawing aptitude of the candidate shall be judged on the following aspects:

(i) Ability to sketch a given object proportionately and rendering the same in visually appealing manner.
(ii) Visualizing and drawing the effects of light on the object and shadows cast on the surroundings.
(iii) Sense of perspective drawing.
(iv) Creating interesting two dimensional composition using given shapes or forms.
(v) Creating visual harmony using colours in given composition.
(vi) Understanding of scale and sense of proportion
(vii) Drawing from memory through pencil sketch on theme from day to day experiences.