Electronic establishment registration requires FORM-I filing, timely certificate issuance, mandatory updates, and closure intimation under labour rules. An employer seeking registration of an establishment must apply electronically in FORM-I with the prescribed particulars and supporting documents on the designated portal. A complete application requires issuance of a certificate in FORM-III within seven days, failing which the establishment is deemed registered and the certificate is auto-generated. The certificate is non-transferable, must be displayed conspicuously, and registration particulars must be updated for changes, existing registrations, and closure of the establishment through the prescribed forms and timelines.