The surname Sandhar is predominantly found within the Sikh and Punjabi communities of Northern India, particularly in the state of Punjab. In the context of traditional South Asian social stratification and community lineages, the name is typically associated with the Jat Sikh or related agricultural and artisan communities. However, modern demographic shifts, urbanization, and changing social structures mean that surname affiliations can vary widely, and many individuals who carry the last name do not actively emphasize traditional caste designations in contemporary professional or social settings. Family histories, ancestral village roots, and broader regional heritage are generally considered much more significant markers of identity for individuals bearing this surname than rigid classifications.