b arch paper ??? .
Hi Ansh,
B.Arch. is an Undergraduate course of duration 5 years. if you want admissions to this course, the most prominent examination is the JEE-Mains Paper-2. For eligibility, you need to have passed 12th with at least 50% of marks. you can find more information on this page:
https://engineering.careers360.com/articles/jee-main-paper-2-syllabus
You can also answer the NATA examination which is conducted by the COA. it has a similar eligibility criteria and more information about this examination can be found here: