It will not be possible for you to study Bachelor of architecture or any other architecture related course without having Mathematics in your 12th. It is compulsory to study Mathematics alongwith Physics and Chemistry as compulsory subjects in your 10 + 2 class level board examination for being eligible for studying Architecture course  such as Bachelor of Architecture. Besides this it is also compulsory to score at least 45% marks in the aggregate of 10 + 2 class level board examination.

Mentioned below are the top colleges which are offering Bachelor of Architecture course in India:

1. Ambitious college of distance education
2. Rizvi College of Architecture
3. School of environment and architecture
4. Academy of architecture
5. VESCOA

Read more:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/courses/b-arch-bachelor-of-architecture/amp&ved=2ahUKEwiM7eyhmLP2AhXAsVYBHYVfAOMQFnoECAQQBQ&usg=AOvVaw0Bo29wre4k0lTLMCYzUkNQ