Chola dynasty
Interregnum

There is not much information about the transition period of around three centuries from the end of the Sangam age (c. 300) to that in which the Pandyas and Pallavas dominated the Tamil country. An obscure dynasty, the Kalabhras invaded Tamil country, displaced the existing kingdoms and ruled during that time. They were displaced by the Pallava dynasty and the Pandyan dynasty in the 6th century. Little is known of the fate of the Cholas in Tamil land during the succeeding three centuries. The Cholas disappeared from the Tamil land almost completely in this debacle, though a branch of them can be traced towards the close of the fifth century CE in Rayalaseema—the Telugu-Cholas, whose kingdom is mentioned by Yuan Chwang in the seventh-century CE. Due to Kalabhra invasion and the growing power of Pallavas, Cholas migrated from their native land Uraiyur to Telugu country and ruled from there as chieftains of Pallavas at least since 540 CE. Several Telugu Chola families like Renati Cholas, Pottapi Cholas, Nellore Cholas, Velanati Cholas, Nannuru Cholas, Kondidela Cholas existed and claimed descent from ancient Tamil king Karikala Chola. The Cholas had to wait for another three centuries until the accession of Vijayalaya Chola belonging to Pottapi Chola family in the second quarter of the ninth century to re-establish their dynasty as independent rulers by overthrowing Pallavas and Pandyas. As per inscriptions found in and around Thanjavur, Thanjavur kingdom was ruled by Mutharaiyars / Muthurajas for three centuries. Their reign was ended by Vijayalaya Chola who captured Thanjavur from Ilango Mutharaiyar between 848 and 851 CE.

Epigraphy and literature provide a few glimpses of the transformations that came over this line of kings during this long interval. It is certain that when the power of the Cholas fell to its lowest ebb and that of the Pandyas and Pallavas rose to the north and south of them, this dynasty was compelled to seek refuge and patronage under their more successful rivals. Despite their reduced powers, the Pandyas and Pallavas accepted Chola princesses in marriage, possibly out of regard for their reputation. Numerous Pallava inscriptions of this period mention their having fought rulers of the Chola country.
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