Dailekh jila Nepal ekikaran pahile khash rajaka sitkali rajdhanike rupme parichit Dullu aur Belaspur rajyme vibhajit tha. Prachin aur madhy kalmen do rajymen vibhajit ies jileko Bahadur Shahane san 1781 me Nepalme milaya tha. Ieska tathy praman Itihas men dekha jata hai jilake vibhinna jagahamen rahe mandir, dewal, shilalekh aadi ies jilaka aitihasik parichay deta hai.