 In the inscriptions ascribed to period from the 3rd to the 11th century AD, the words "Kammarashtram", "Kammaratham", "Kammakaratham", "Karmarashtram", "Karmakaratham", "Karmakarashtram" and "Kammakarashtram" were used interchangeably.The subsequent inscriptions of Telugu Chodas and Kakatiyas mentioned "Kammanadu"; for example, the Konidena inscription of Tribhuvana Malla from 1146.Some of the important inscriptions relating to Kammanadu are