Could anyone recommend good mba programs in Asia with a focus on Business Development? It doesn't seem to be the most mentioned area and when it comes to employment rates, some unis mention it, some don't. Is it too niche of an area? IIM-A (PGPX) was one of the few where I could find some info. Thank you.

By business development do you mean sales and accounting management? Curiously,  few business schools teach that outside of marketing and negotiation.