The Dhillons are sometimes known as the "Raja Jats" (King Jats) due to the large number of kings, royalty and warriors. It is thought to be one of the oldest Jat syndicates with history dating back over four thousand years.
The Dhillon Dynasty founded Delhi and ruled there from 800 BC to 283 BC (about 450 years). It is from the name of Dhillon that we have the word Dhilli or Delhi. A ruler of the Dhillon dynasty, Raja Dhilu (King Dihlu) founded Delhi and the dynasty ruled from there from 800 BC to 283 BC. According to Radhe Lal, who quotes 'Waqiate-panch Hazarsala, 800 years before Christ, 13 rulers of Dhillon gotra - ruled for about 450 years.