The employer can register any Branch or Sales Office through ESIC Portal using his credentials and his unique primary registration code number. Fill in the form and submit it to ESIC for Esi registration on the ESI Online Portal.Log in to the ESIC portal using the credentials provided. In case of any previous employment please fill up details as under. Submitting scanned copy of application form in a single PDF file. To register for ESIC online, visit the ESIC portal, fill out the registration form, submit required documents, and pay the prescribed fees. A register detailing employee wages and salary information must be filed along with the returns. Dear All, Can any body help me related to the ESIC "on line employee registration process " which is recently starts in pune.