Architecture

You need to pursue B.Arch in order to make your career in the architecture field.

The competition these days is very high. So, students with compartment are ignored. Please, check carefully and plan.

The Bachelor of Architecture (B.Arch) is a Bachelor's degree designed to satisfy the academic requirement of practising architecture.
The duration of the course is 5 years and to get admission into B.Arch, a student must fulfil the following conditions:
10+2 or equivalent with minimum 50% marks along with mathematics as a compulsory subject.
10th+3 years Diploma in any stream from a recognised university/ board/ institution.
You need to clear NATA (National Aptitude Test in Architecture) with the 80% marks conducted by the Council of Architecture.
Since you had arts (no maths) so getting admission seems difficult.

Yes, you can, but you need to appear for NATA exam.

You need to submit your NATA score card along with your class 12th mark sheet to the CET authority who will release a rank list based on the submitted scores.

There are a lot of private universities which offer architecture course in India. The best ones are CEPT, SPAs, NITs and VTU. For the list of colleges, you may check the following link:
https://www.coa.gov.in/show_img.php?fid=214