Aditya I or Aditya Chola, the son of Vijayalaya Chola, is the second ruler of the medieval Cholas. He extended the Chola empire by the conquest of the Pallavas and occupied the Western Ganga Kingdom.
In the year 903 CE, Aditya Chola killed the Pallava king Aparajita and annexed the Pallava territories with that of the Cholas. He conquered Kongu land from the Pandyas. He died in 907 CE in Tondaimannarur.