happen in the case of attachment of property. While amount of credit lying in the ECL could be considered to be the property of the tax payer, if viewed from perspective of ownership or entitlement of the tax payer over the same, not allowing use of such property for discharging liability to pay tax, penalty etc. under section 49 of the Central GST or not permitting its refund to the tax payer cannot be seen as seizure or attachment of the property. In attachment of property, the custody of the property is, actually or symbolically, taken over by the department with a view to protect the property from being transferred or altered in character, so that it can be appropriated, if the need arises, for realising tax dues. But, in case of blocking of ECL under rule 86-A, the custody of the property remains with the tax prayer but disability is created on his capacity to utilise it or receive the refund of unutilised credit. The power of provisional attachment of the property under section 83 of the CGST Act can be exercised only after initiation of any proceeding under Chapters XII, XIV and XV, which relate to assessment, inspection, search, seizure, arrest and demands and recovery of tax not paid or shortly paid or erroneously paid. For invoking the power under rule 86-A, it is not necessary that proceeding under any of the said Chapters is initiated and it can be exercised, when conditions prescribed therein are met. It is thus clear that the power under rule