Hello,

Chandigarh College of Architecture (CCA) was established in 1961 in Chandigarh. The college is affiliated to Punjab University, Chandigarh.

• The college offers b.arch. The seats intake is 40 out of which 32 seats reserved for Chandigarh quota, 6 seats for candidates outside Chandigarh and one seat each for Kashmiri Pandit and wards of Kargil Martyr.
• The college itself conducts the admission process.
• The selection is based on the combined merit of JEE Main.

So admission is on the basis of JEE and without that you are not eligible. If you wish to apply to Chandigarh College of Architecture you can do so by visiting the official website of Chandigarh Engineering and Architecture Counselling (Joint Admission Committee).

https://engineering.careers360.com/articles/nata-eligibility-criteria

Hope this helps!!