Which one of the following statements about the 'Amara-Nayaka' system is not correct?

The Amara-Nayaka system was a key political innovation of the Vijayanagara Empire, many features of which were derived from the Iqta system of the Delhi Sultanate. The Amara-Nayakas were military commanders who were given territories (amaram) to govern by the Raya. They collected taxes and used a portion of the revenue for personal maintenance and for keeping a required contingent of horses and elephants.

Statement D is incorrect because the territories held by the Amara-Nayakas were not hereditary. To maintain control and prevent the commanders from becoming too powerful in a single region, the kings (Rayas) periodically transferred them from one territory to another. Although some Nayakas asserted independence during the empire's decline, the institutional design was based on transferability rather than hereditary right.