Sunth state was established in 1255 AD. It was part of Rewa Kantha Agency of the Bombay presidency. Ruler of Sunth was entitled to nine gun salute. Sunth had an area of 394 square miles in 1901. Its boundaries touched the Kandana state in north Rewa Kantha, Dungarpur state and Banswara of Rajputana; to the east by the Jhalod taluka of the Panch Mahal which came under the British jurisdiction; to the south by Sanjeli State of Rewa Kantha and by the Godhra taluka of the Panch Mahal; and to the west side by Lunavada state. The topography of the state can be divided into north and south. The topography of north side of the state was flat, spacious, many streams on their way to north of Mahi river and the south side was rugged, covered with long steep lines of hills.
Sunth rulers were Paramara by caste and their origin can be traced to Mahipawat branch of Malwa dynasty. According to the Sunth bards, Jhalam Singh, a Ponwar came from Mount Abu and established his rule at Jhalod in the Panchmahal.
According to one of the popular myths, Rana of Jhalod demanded Jhalam Singh’s daughter for marriage. Meanwhile, Jhalam Singh was attacked by the Mughals and was killed. His son fled to the jungles where he came under the rule of Bhil chief called Sutta. Sutta was defeated by the Sunth and they re-established their rule with Brahmapuri as a capital. He changed its name to Sunth and established his own rule.
According to another popular saga, the Sunth lineage came from Dhar in Malwa when their principality was conquered by the Muslim rulers.