Dear Simna,

In order to get admission through NATA you have to score good marks in your entrance exam.

12th class marks are only to fulfill the eligibility criteria. 

To be qualified for NATA exam you should have minimum 25% in MCQ portion (30 out of 120). Minimum 25% in drawing portion (20 out of 80).

The overall qualifying marks (out of 200) will be based on post-exam statistics and at the discretion of the Council.

Good Luck!!