Nomination norms in demat accounts and mutual funds now require mandatory single-account nomination, revised opt-out, and simpler online validation. Modified norms for nomination in demat accounts and mutual fund folios require regulated entities to facilitate a revised nomination framework, with mandatory nomination for all single accounts or folios opened on or after the effective date unless an opt-out declaration is filed, optional nomination for jointly held accounts or folios, and consent of all joint holders for any nominee change. Investors may nominate up to three persons, submit nomination online or offline through prescribed validation methods, opt out through the specified declaration or online option, and provide, change or cancel nominations any number of times, with equal apportionment where nominee shares are not specified.