Hi,

The drawing questions have not been released by CBSE in all these years. What I see is that the drawing questions are basic in nature testing candidates in their knowledge of abstract shapes, geometrical shapes and free hand drawing. What is interesting is that if you do really well in Maths and Aptitude, you stand a good chance of scoring very well and gaining a seat. Check the official past year question papers here - https://engineering.careers360.com/articles/jee-main-paper-2-answer-key

For practice, you can use any of the NATA sample papers. There are some sites that aim only to help students. For Example there is a blog called v which deals with design exams and preparation. You could use that as a reference.