<h1>Unique identification number assignment makes PAN or C KYC primary identifiers and bars Aadhaar as a UIN.</h1> Amendments define 'OVD' and 'Identity Details' to include PAN, Passport, Driving License, Voter ID and Aadhaar/e Aadhaar and permit de duplication using the C KYC database. Registration must use PAN for legal entities and PAN or C KYC for individuals, with other IDs only if those are absent. IUs must assign a Unique Identification Number to registered users; Aadhaar must not be used as a UIN and alternative IU issued UINs follow a prescribed format. Supporting documents may be submitted anytime in multiple formats, must be digitally signed/stamped where required, and each debt or security document must carry a unique identifier reference.