hi shreyasi,

Eligibility to appear in NATA EXAM.

Age Limit : No Age criteria are specified by COA(Council of Architecture)
Qualifying Examination : Candidates Passed/ Appearing in 10+2 exam
Qualifying Subjects Required : 10+2 with Physics, Chemistry and Mathematics as compulsory subjects having 50% marks
in Physics, Chemistry Mathematics and atleast 50% aggregate marks in 10+2.

I hope this answer will help, all the best for the future!!