Contract labour experience certificate form records employer details, employment period, designation, and work performed for administrative use. Experience Certificate of Contract Labour is a prescribed form for recording and certifying a labourer's service particulars. It requires details of the contractor or employer, principal employer, labourer, UAN or Aadhaar number, employee register serial number, registration details under the Board where applicable, period of employment, designation, and work performed. The form is completed with the contractor's seal and signature, and inapplicable particulars are to be struck off.