GST Refund claims filed after the appointed day for goods cleared or services provided before the appointed day and exported before or after the appointed day to be disposed of under earlier law

Every claim for refund of any duty or tax paid under earlier law, filed after the appointed day, for the goods or services exported before or after the appointed day, shall be disposed of in accordance with the provisions of earlier law:
PROVIDED that where any claim for refund of Cenvat credit is fully or partially rejected, the amount so rejected shall lapse:
PROVIDED FURTHER that no refund claim shall be allowed of any amount of Cenvat credit where the balance of the said amount as on the appointed day has been carried forward under this Act.

(CGST Law)