Architecture

Hi,
Yes, you have a very good chance of getting RV College with those marks.

Christ University is better, since it's process of teaching and learning is good.

Yes, with that score of JEE mains paper 2, you may get admission in CCA.

Yes, with your JEE Mains paper 2 score, you can join this college provided you have qualified 10+2 norms of council of architecture.

That is a really good score, and can get a lot of good colleges. It would be better, if you had specified in which region/ state are you looking for admission, since there are a lot of colleges. Visit this link to check B.Arch colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/je

Submit your JEE paper 2 marks card to the concerned officials in your State counseling center for merit list addition.

A student should have passed in Maths (10+2 also with 50% minimum), along with NATA/IIT JEE Part 2.

No, not a problem at all, creativity is the baseline in Architecture and not sight problems.

Yes, subjected to qualification in NATA/IIT JEE part 2.

No, you have to clear 10+2 to take admission for Architecture.