Effect to be given to AO order after CIT(A) passed the order

sir;
AO has made some additions in his assessment order us 143(3). Later on CIT(A) directed that additions shall be deleted by AO & pass the order in favour of assessee.
I have a doubts
1. since it's faceless assessment; AO will rectify or give effect to his original order on its own ? or we have to make an application to AO to give effect ? if yes; Since this is faceless assessment how to make an application to AO. ? or shall we made an application to jurisdictional AO ?. There is any such option available on portal? plz reply thanx