Interest on delayed refunds accrues from expiry of the prescribed processing period until payment, at the notified rate. Interest on delayed refunds is payable when tax ordered refunded is not returned within the prescribed sixty day application processing period; interest accrues from the day after that period until actual refund, at a rate specified by government notification on the Council's recommendation. Orders of an Appellate Authority, Tribunal or Court against a proper officer's order are deemed equivalent for interest purposes.