Hello there,
Here's names of some Colleges and NITs providing b.arch

School of planning and architecture
IIT Kharagpur
Chandigarh University
Lovely professional University
Sir jj college of architecture
Nims University
Nit Trichy
Birla institute of technology, ranchi
Jadavpur University
Chandigarh College of architecture
Malaviya National Institute of Technology, Jaipur.
Maulana Azad National Institute of Technology, Bhopal.
National Institute of Technology, Calicut.
National Institute of Technology, Hamirpur.
National Institute of Technology, Patna.
Here's link which will help you.
https://engineering.careers360.com/colleges/list-of-b-arch-colleges-in-india

Hope this answer will help you.
Good luck!
Thank you.