Registration for CSR activities requires completing e form CSR 1 with entity details, documents, authorised signature and professional certification. Registration for CSR activities is effected via e form CSR 1 pursuant to section 135 and rule 4(1) and (2) of the Companies (CSR Policy) Rules, 2014. The form specifies eligible entity types (section 8 companies, registered trusts, societies, government entities, entities under statute), requires disclosure of incorporation and contact details, PAN, authorised representatives, mandatory attachments (registration certificate and PAN), an internal authorising resolution, digital signature by an authorised officer, and certification by a practising professional who accepts liability under the Companies Act for false certification.