68C. All arrears of rent and cesses together with interest thereon, which remained due to any rent-receiver in respect of any interest on the date of acquisition of such interest under the provisions of this Act and which have not been barred by limitation, and all sums due to him in respect of any decree for such arrears whether having the effect of a rent decree or money decree and whether obtained before or after the date of acquisition, the execution of which is not barred by limitation, shall continue to be recoverable by such rent-receiver amicably or through Civil Court from the persons liable to pay them.