Pending refund claims to be disposed of under earlier law :

Every claim for refund of any duty/tax and interest, if any, paid on such duty/tax or any other amount, filed by any person before the appointed day, shall be disposed of in accordance with the provisions of earlier law and any amount eventually accruing to him shall be paid in cash, notwithstanding anything to the contrary contained under the provisions of earlier law other than the provisions of sub-section (2) of section 11B of the Central Excise Act, 1944 (1 of 1944):

Provided that where any claim for refund is fully or partially rejected, the amount so rejected shall lapse.