The document discusses the emergence of new dynasties and kingdoms in South Asia during the post-Gupta period, including the Rashtrakutas, Pratiharas, Palas, Cholas and Gurjara-Pratiharas. It describes how former subordinates like the Rashtrakutas overthrew their overlords to establish new kingdoms. The Cholas rose to power by capturing territories from neighboring kingdoms and expanding their influence under rulers like Rajaraja I and Rajendra I. The document also briefly discusses the Ghaznavid invasions from Afghanistan and the defeat of the Chauhan king Prithviraja III by Muhammad Ghori.