1.1 Vijayalaya (r. 850β871 CE) & Parantaka I (r. 907β955 CE)
Vijayalaya re-established Chola power by capturing Tanjore from the Muttaraiyar chieftains. Parantaka I expanded the kingdom by defeating the Pandyan king Rajasimha II and capturing Madurai (assuming the title Maduraikonda).
- Battle of Takkolam (949 CE): Parantaka I suffered a major setback when Rashtrakuta Crown Prince Krishna III defeated and killed the Chola Prince Rajaditya at Takkolam, briefly halting Chola expansion.
- Uttaramerur Inscriptions: Parantaka I issued two famous inscriptions (919 and 921 CE) detailing village assembly regulations.
1.2 Rajaraja I (r. 985β1014 CE) β The Imperial Architect
Historiographical Status: Rajaraja I laid the structural foundation of the Chola Empire through systematized revenue surveys, naval expansion, and imperial monumentality.
- Naval Campaigns: Destroyed the Chera navy at Trivandrum (Kandalur Salai). Annexed northern Sri Lanka (Anuradhapura), renaming it Mummudi-chola-mandalam. Conquered the Lakshadweep and Maldives islands.
- Land Revenue Survey: Initiated a comprehensive land survey and assessment in 1001 CE, classifying land based on fertility and productivity.
- Architectural Masterpiece: Commissioned the grand Brihadisvara (Rajarajesvaram) Temple at Tanjore in 1010 CE.