B.Arch

Yes, with university transfer and NOC letter from the university, you may pursue the third year in Canada.

Visit this link to check B.Arch colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=6919840
Visit this link for various colleges which provides the brochure:
https://www.shiksha.com/architecture-planning/colleges/b-arch-colleges-india
Check the link below to get a list of approved architecture colleges:
https://www.coa.gov.in/index1.php?lang=1&level=0&linkid=25&lid=26

Hi,
With government quota seats already filled up, you have an option of private management quota.

Hi,
Sadly, you will have to wait for the next year's NATA exam.

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

Hi,
I would suggest some colleges in Bangalore such as SJBSAP, BGSSAP and East West School of Architecture which offer the course at less than 6 Lacs. Visit this link to check B.Arch colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=6919840
Then visit this link for various colleges which provides you with the brochure:
https://www.shiksha.com/architecture-planning/colleges/b-arch-colleges-india
Check the link below to get a list of approved Architecture
colleges:
https://www.coa.gov.in/index1.php?lang=1&level=0&linkid=25&lid=26

Chances of getting Government College in the B.Tech is very low, but you can get the B.Arch in any of the government or in the semi-government college.

NIT-Hamirpur is better, because it is an Institute of National Importance and moreover faculty is very much experienced.

You can do B.Sc, B.Com, BBA, BA. After these courses you can opt for M.Sc, M.Com, MBA, civil services.