Is B.Arch a leading course?

Yes, Bachelors in Architecture is the most trending course. Architecture has a lot of scope in developing country like India which needs to add Infrastructure in the next few years to be among the super powers by 2050. https://www.shiksha.com/architecture-planning/articles/be-an-architect-know-cours

Click the link below. https://www.shiksha.com/careers/architect-13?q=Architect&rf=searchwidget&landing=cp.