Explanation:

 Historians believe that after the Gupta period, Gurjara Pratiharas came to India from the central Asian region and settled in Rajasthan. Gradually, they gained political importance.

The bardic tradition of Rajasthan claims that the Gurjara Pratiharas, Chalukyas, Parmaras, and Chahmanas were born out of a yajna done at Mount Abu. Therefore, these four dynasties are also known as agnikulas (fire-clans). The four dynasties of Rajputs were created for the protection of the country from external aggressions. The literary meaning of Pratihara is ‘door keeper.’ It is believed that their ancestor Lakshmana served as a door keeper to his brother Rama. Therefore, they were called as Pratihara. The geographical name of Gujarat is supposed to be derived from Gurjara.