Colleges in Mumbai

Admission is through counselling conducted by Directorate of Technical Education, Maharashtra based on marks obtained in 10+2/ Diploma and score obtained in National Aptitude Test in Architecture(NATA).
Selection parameter and weightages:
10+2/ Diploma marks - 50%
NATA score - 50%
https://www.shiksha.com/architecture-planning/course/b-arch-sir-j-j-college-of-architecture-mumbai-71170

CLAT score would be considered for LL.B.

Yes, it's exactly the same process which is on the official site of Amity University.

Hi,
The eligibility criteria for admission to this course is a percentage of not less than 60% in the aggregate at the XII standard exam of the Maharashtra Board of Higher Secondary Education or its equivalent, with MATHEMATICS as one of the subjects. For reserved category candidates, the requirement is 50% in the aggregate.
Thanks!

Yes, that's a decent enough score. You can get the admission easily.
Best of luck!

It basically starts after the CET results like the process of college begins from June - July.

K C College
Sophia College
Amity University, Mumbai
LF College of Engineering and Management

Yes, of course. But, you need not to worry about that. They just check your confidence level and command over the language.
So just relax and prepare yourself.
All the very best!