Legislation forces Bing Maps to use separate APIs for India and China; the third API is common for the rest of the world.
Bing Maps has 3 distinct APIs:
1) China only
2) India only
3) Rest of the world
The maps in the China and India APIs are more detailed for their respective countries and haven’t been integrated into the Bing Maps [rest of world] API because of the requirements to host the data within the countries’ respective borders.