Hi,
For NATA -> As per given on the website of NATA you need to have 50% marks with mathematics as one of the mains subjects in boards to be eligible to sit for the exam

For JEE MAINS (PAPER -2) -> As per new rules you need to have 75% marks with mathematics as a subject in boards for being able to sit fot the exam.

Hope this helps.

Dear Yash,

You are asking for which entrance exam of architecture?

If you are asking for NATA you need 50% minimum marks in your 12th class with mathematics as your compulsory subject to apply for architecture 

To take admission in NITs you should have 75% marks in your boards exam or you should be in top 20 percentile for general category and 65% marks for SC/ST. 

 

Good luck!!