With Iyer and Pillai printed and published Tholkappiyam, Nachinarkiniyar urai (1895), Tholkappiyam Senavariyar urai, (1868), Manimekalai (1898), Cilappatikaram (1889), Pattupattu (1889), and Purananuru (1894), all with scholarly commentaries.
The primary source for his reign is the Mahavamsa, though he is also the only early Sri Lankan king (along with Elara) to be extensively mentioned in the Chera Cilappatikaram (also spelled Silapathikaram).
Cila-ppati-karam (c. sixth century C.E.) which attributes northern campaigns and conquests to all the three monarchs of the Tamil country, gives a glorious account of the northern expeditions of Karikala, which took him as far north as the Himalayas and gained for him the alliance and subjugation of the kings of Vajra, Magadha and Avanti countries.
Except the longer epics Cilappatikaram and Manimekalai, which by common consent belong to the age later than the Sangam age, the poems have reached us in the forms of systematic anthologies.
Its story is a sequel to Silapathikaram or Sīlappadhikāram and tells the story of the conversion to Buddhism of the daughter of Kovalan and Madhavi.