Abstract: In this research paper, our attempt is to examine the role of the Emperor Aśōka as depicted in vaṃsa tradition in Sri Lanka. Aśōka’s legend is found in the fifth century chronicles of Sri Lanka, the Dῑpavaṃsa and the Mahāvaṃsa as well as in Buddhagohosa’s commentary on the Vinaya. In addition to this, the commentary on the Mahāvaṃsa, the Thūpavaṃsa and the Bōdhivaṃsa were studied. The discrepancies in Mahāvaṃsa and Divyāvadāna has been discussed here. I have not discussed the third Buddhist council as discussed it in our next research article.