Unniyachi is the heroine of Unniyachi Charitham and the poem is concerned with a Gandharva's love for her. There are plenty of passages of ornate description of either the heroine's charms or the splendour of the town or market place visited by her. The authorship is unknown. In Unnichiruthevi Charitham, it is Indra, the King of the Gods, who is smitten by a passion for the heroine and descends on the earth to visit her. In the course of the elaborate description of things seen by Indra, we get passages which throw light on the manners and morals of the upper class society of its time. Only a portion of the work is now available to us. Unniyadi Charitam, which also exists in a fragmented form, is supposed to be by Damodara Chakkiar. Against the backdrop of a complicated story involving generations of Gandharvas, there merges the story of Unniyadi, the heroine. The moon god happens to hear wonderful music wafted into the sky and sends his attendant Suvakan to find out its source. The poem contains the description of all that Suvakan sees on the earth, especially in places like Thrissur, Mahodayapuram and Kayamkulam.