Input tax credit entitlement for composition taxpayers switching to regular regime permitted subject to invoice possession and eligibility conditions. A composition taxpayer switching to the regular GST regime may claim electronic credit for eligible duties and taxes on inputs and inputs in semi finished or finished goods held on the appointed date, provided the inputs are for taxable supplies, the taxpayer is not paying tax under the regular provision, the taxpayer is eligible for input tax credit, possesses invoices or prescribed documents evidencing earlier law tax payment, and those documents were issued within the prescribed pre appointed date time limit; the method of calculating the credit will be prescribed.