NATA

Yes, you can take admission in design college on the basis of JEE Mains paper 2. Since NATA paper has a huge weightage of drawing, abstract and aesthetic sensibility, it is given more importance than any other exams. On the other hand JEE has been producing brilliant architects for as long as 40 years now. Both the exams have an equal importance in the field of design. You can either appear for one of them or both. Appearing for both, however, will give you the upper hand.

Majority of good institutes take admission on the basis of JEE Mains and NATA. So, you will have to check with some private institutes in your state.

Please refer to the link below:
https://www.shiksha.com/architecture-planning/exams/nata/answer-key.

Hi Rutvik,
The cut-off for All India seats was 83.

You need to appear for VITEEE.

With 64%, you may not get admission in many colleges. Check Shiksha college predictor to get more exposure.

Admission is through counselling conducted by Directorate of Technical Education, Maharashtra based on marks obtained in 10+2/ Diploma and score obtained in National Aptitude Test in Architecture(NATA).
You will need a valid NATA score to secure admission for this course.
Regards.