How should nri contact ao

Generally, files with foreign transactions/income are transferred to the assessees' jurisdictional AO for cross verification manually; as the same is not posible with CPC. If during verification the entries found OK, the ITR gets processed automatically, without any efforts from the assessee. If any clarification needed, you may be contacted by E-mail and also in writing at the given local address in ITR. In that case you will be required to submit the clarification with any documentary proofs etc, in person or through your agent/attorney/CA. Till then no need to worry, but just wait.

Thanks sir, clear explanation

You are welcome.