Andhra University, Visakhapatnam

It would be better for you to do M.Tech. You can also prepare for GATE exam as if you get a good rank, you can get good job opportunities. It is just my suggestion.
For your M.Sc Physics, you need to appear for PGCET.

Yes, you can get a seat here.

Better to search in college websites or about the course in online

Almost all the colleges in AP take students based on EAMCET results. So, it is not possible for you to get seat in top colleges based on JEE Advanced.
I would suggest you to try NIT Warangal, IIT Hyderabad or IIIT.

There are fee concessions for some categories students, but you have to pay some amount to get admission in this institute, for more details check the link below:
https://www.shiksha.com/it-software/course/master-of-computer-applications-andhra-university-visakhapatnam-171216

The duration of the course is 5 years and to get admission into B.Arch. the student must be fulfilled the following conditions: 10+2 or equivalent with minimum 50% marks along with the compulsory subject of mathematics.
10th+ 3 year-diploma in any stream from a recognized university/board/institution.
Cleared NATA (National Aptitude Test in Architecture) with the 80% marks conducted by Council of Architecture

Hi Vamsi,
No issues. You can still get an admission on the basis of NATA.
https://www.shiksha.com/architecture-planning/course/b-arch-andhra-university-visakhapatnam-171104
Thanks

It is suggested that you check the same with your seniors as depending upon the type of exams and syllabus, the reference books change.