Transition of input tax credit - carried forward cenvat or VAT may be claimed subject to admissibility and recovery rules. Transitional rule allows a registered taxable person to record in the electronic credit ledger CENVAT or Value Added Tax credit carried forward from earlier-law returns for periods ending before the appointed day, only if such credit was admissible under the earlier law and remains admissible under this Act, and provides that any amount taken as credit may be recovered as an arrear of tax if proceedings under the earlier law establish its recoverability.