Explanation:

The Tomara (also called Tomar in modern vernaculars because of schwa deletion) were an Indian dynasty who ruled parts of present-day Delhi and Haryana during 9th-12th century. Their rule over this region is attested to by multiple inscriptions and coins. In addition, much of the information about them comes from medieval bardic legends, which are not historically reliable. They were displaced by the Chahamanas of Shakambhari in 12th century.
The earliest extant historical reference to the Tomaras occurs in the Pehowa inscription issued during the reign of the Gurjara-Pratihara king Mahendrapala I (885-910 CE).This undated inscription states that Jaula of the Tomara family became prosperous by serving an unnamed king. His descendants included Vajrata, Jajjuka, and Gogga. The inscription suggests that Gogga was a vassal of Mahendrapala I. It records the construction of three Vishnu temples by Gogga and his step-brothers Purna-raja and Deva-raja. The temples were located at Prithudaka, on the banks of the river Sarasvati.