JEE

You are already eligible for JEE. But. If you want to improve your marks, more than that is also good. But, for JEE you should focus on the main paper first.

This you have to check on the JEE Mains official website, as there are many reporting centers and you might find a center that is very close to your town instead of going to the state capital for the reporting.

This can't be possible as JEE Mains is always conducted on Sunday and sometimes the online paper is held on Saturday, but that also cannot collide with the board exam.

7th May 2018 is the last of registration for JEE Advanced.

Hello there,
In NATA that is National aptitude test in Architecture the maths questions are more of type NCERT and few questions are JEE type. Hope this help.
All the best.

Hi,
Yes, you have a fairly good chance with the above-mentioned score to get a seat in AU.

Hi,
Yes, you have a fairly good chance with the above-mentioned score to get a seat in AU under OC category.

Hi,
Yes, you have a fairly good chance with the above-mentioned score to get a seat in AU.

Yes, NATA/JEE is mandated for entry into architecture course.

Hi,
Yes, you have a fairly good chance with the above-mentioned score to get a seat in USAP, SPA will not be possible since it requires a minimum of 75% in class 12th. It's a very good NATA score, congratulations.