For what reason were political developments in South Asia fundamentally different from those of Southwest Asia?

Question

Quizplus · Accepted Answer

Unlike Southwest Asia, South Asia did not have numerous territorial states or empires that had to be integrated into a larger political framework. Therefore, ruling classes in South Asia did not face the same pressure to expand their territorial control or to create religious justifications for their rule. This fundamental difference in political context produced very different political developments in the two regions.

For What Reason Were Political Developments in South Asia Fundamentally