Dhillon is a large Jat got found across Punjab and in what is now Pakistan, with concentrations in the Majha and around Ludhiana and Moga.
Gurbaksh Singh Dhillon, one of the three INA officers tried together at the Red Fort in 1945, was a Dhillon, and the choice of a Hindu, a Sikh and a Muslim to be tried together was the prosecution's decision and the defence's opportunity.
Jarnail Singh Dhillon, the Indian football captain of the 1960s, came from the Mahilpur belt.
The got's origin tradition follows the standard Rajput-descent pattern.
Dhillon villages are scattered and the name is among the most common Punjabi surnames in North America.
The Dhillon villages of the Majha and the Malwa include several that carry the name directly, and the got is one of the larger ones in the Sialkot and Gujranwala country that is now in Pakistan, where the same name is carried by Muslim families.
Ajit Singh Dhillon and others of the name appear through the Ghadar and Babbar Akali records, which is unremarkable given the size of the got and is the sort of thing family histories make more of than it will bear.
The got exogamy rule means no Dhillon may marry a Dhillon anywhere, regardless of any traceable relation, which for a clan this large excludes a very substantial number of possible matches. That is the practical effect of the rule and it is why the marriage search runs so far from home.