Participant registration under depository regulations requires comprehensive disclosures, operational safeguards, and depository undertaking for eligibility. Application for registration as a depository participant requires submission of Form E with supporting documents and fee; detailed disclosures of corporate identity, activities, affiliations, regulatory registrations, litigation, violations, audited financial strength, services to beneficial owners, organisational and personnel details; risk-control, internal controls, insurance; and IT systems, data storage, back-up and disaster recovery. The depository must provide an undertaking that the applicant meets eligibility and systems criteria and that participant-beneficial owner agreements conform to bye-laws. The application must be signed, initialled, attested, and accompanied by the prescribed fee and declaration of compliance with SEBI regulations.