Cholas in the south of the Vengi kingdom became dominant around the beginning of the 10th century C.E. after having brought about fall of the Pallavas in Tondaimandalam. Rajaraja Chola, who is considered the greatest Chola ruler, ascended the throne of Tanjavur in 985 C.E. He pursued his imperialistic ambitions with an aggressive attitude. He conquered and consolidated the southern provinces and then in a mighty sweep in the north, brought Gangapadi, Nolambapadi, Talaikkadu and parts of southern Deccan under his rule. This Chola advance brought them into direct conflict with the Western Chalukyan power.