One of the 3 important kingdoms in southern India in ancient times, with Pandya and Chera. Pandya, Chola and Kerala were present at Rukmini’s swayamwar as per Bhagavata Dashamaskanda.
Turvasu – Varga – Gobhanu – Traishani – Karandhama – Marutta – Dushyanta – Varudha – Gandira – Keralas, Pandyas, Cholas, as per Agnipurana Chapter 277.
As per Mahabharata Sabhaparva Chapter 27 verse 21, Arjuna conquered Cholas. The Chola king presented gifts to Yudhishtira as per Sabhaparva Chapter 52 verse 35. Cholas protected the southern part of Drishtadyumna’s Kraunchavyuha in the Mahabharata as per Bhishmaparva Chapter 9 verse 60. Krishna defeated the Cholas once as per Dronaparva Chapter 11 verse 17.