In Vāyupurāṇa (Vayupurana) there is a list of all the kings who ruled during Kaliyuga. In this list, after the end of the reign of the dynasty of Bṛhadratha (Brihadratha),the reign of a certain Ajaka, belonging to the dynasty of the king Pradyota, is mentioned. He is said to have ruled his kingdom for twenty-one years (thirty-one years, according to variation).