(d)any crypto-asset being a digital representation of value that relies on a cryptographically secured distributed ledger or a similar technology to validate and secure transactions, whether or not such asset is included in sub-clause (a) or (b) or (c),where,––(i)"non-fungible token" means such digital asset as the Central Government may, by notification, specify;(ii)the Central Government may, by notification, exclude any digital asset from this definition, subject to such conditions as specified therein;